functions.php

   1 <?php
   2
   3         date_default_timezone_set('UTC');
   4         if (defined('E_DEPRECATED')) {
   5                 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
   6         } else {
   7                 error_reporting(E_ALL & ~E_NOTICE);
   8         }
   9
  10         require_once 'config.php';
  11
  12         if (DB_TYPE == "pgsql") {
  13                 define('SUBSTRING_FOR_DATE', 'SUBSTRING_FOR_DATE');
  14         } else {
  15                 define('SUBSTRING_FOR_DATE', 'SUBSTRING');
  16         }
  17
  18         define('THEME_VERSION_REQUIRED', 1.1);
  19
  20         /**
  21          * Return available translations names.
  22          *
  23          * @access public
  24          * @return array A array of available translations.
  25          */
  26         function get_translations() {
  27                 $tr = array(
  28                                         "auto"  => "Detect automatically",
  29                                         "ca_CA" => "Català",
  30                                         "en_US" => "English",
  31                                         "es_ES" => "Español",
  32                                         "de_DE" => "Deutsch",
  33                                         "fr_FR" => "Français",
  34                                         "hu_HU" => "Magyar (Hungarian)",
  35                                         "it_IT" => "Italiano",
  36                                         "ja_JP" => "日本語 (Japanese)",
  37                                         "nb_NO" => "Norwegian bokmål",
  38                                         "ru_RU" => "Русский",
  39                                         "pt_BR" => "Portuguese/Brazil",
  40                                         "zh_CN" => "Simplified Chinese");
  41
  42                 return $tr;
  43         }
  44
  45         require_once "lib/accept-to-gettext.php";
  46         require_once "lib/gettext/gettext.inc";
  47
  48         function startup_gettext() {
  49
  50                 # Get locale from Accept-Language header
  51                 $lang = al2gt(array_keys(get_translations()), "text/html");
  52
  53                 if (defined('_TRANSLATION_OVERRIDE_DEFAULT')) {
  54                         $lang = _TRANSLATION_OVERRIDE_DEFAULT;
  55                 }
  56
  57                 if ($_COOKIE["ttrss_lang"] && $_COOKIE["ttrss_lang"] != "auto") {
  58                         $lang = $_COOKIE["ttrss_lang"];
  59                 }
  60
  61                 /* In login action of mobile version */
  62                 if ($_POST["language"] && defined('MOBILE_VERSION')) {
  63                         $lang = $_POST["language"];
  64                         $_COOKIE["ttrss_lang"] = $lang;
  65                 }
  66
  67                 if ($lang) {
  68                         if (defined('LC_MESSAGES')) {
  69                                 _setlocale(LC_MESSAGES, $lang);
  70                         } else if (defined('LC_ALL')) {
  71                                 _setlocale(LC_ALL, $lang);
  72                         }
  73
  74                         if (defined('MOBILE_VERSION')) {
  75                                 _bindtextdomain("messages", "../locale");
  76                         } else {
  77                                 _bindtextdomain("messages", "locale");
  78                         }
  79
  80                         _textdomain("messages");
  81                         _bind_textdomain_codeset("messages", "UTF-8");
  82                 }
  83         }
  84
  85         startup_gettext();
  86
  87         if (defined('MEMCACHE_SERVER')) {
  88                 $memcache = new Memcache;
  89                 $memcache->connect(MEMCACHE_SERVER, 11211);
  90         }
  91
  92         require_once 'db-prefs.php';
  93         require_once 'errors.php';
  94         require_once 'version.php';
  95
  96         require_once 'lib/phpmailer/class.phpmailer.php';
  97         require_once 'lib/sphinxapi.php';
  98         require_once 'lib/tmhoauth/tmhOAuth.php';
  99
 100         //define('MAGPIE_USER_AGENT_EXT', ' (Tiny Tiny RSS/' . VERSION . ')');
 101         define('MAGPIE_OUTPUT_ENCODING', 'UTF-8');
 102
 103         define('SELF_USER_AGENT', 'Tiny Tiny RSS/' . VERSION . ' (http://tt-rss.org/)');
 104         define('MAGPIE_USER_AGENT', SELF_USER_AGENT);
 105
 106         ini_set('user_agent', SELF_USER_AGENT);
 107
 108         require_once "lib/simplepie/simplepie.inc";
 109         require_once "lib/magpierss/rss_fetch.inc";
 110         require_once 'lib/magpierss/rss_utils.inc';
 111         require_once 'lib/htmlpurifier/library/HTMLPurifier.auto.php';
 112         require_once 'lib/pubsubhubbub/publisher.php';
 113         require_once 'lib/pubsubhubbub/subscriber.php';
 114
 115         $config = HTMLPurifier_Config::createDefault();
 116
 117         $allowed = "p,a[href],i,em,b,strong,code,pre,blockquote,br,img[src|alt|title],ul,ol,li,h1,h2,h3,h4,s,object[classid|type|id|name|width|height|codebase],param[name|value]";
 118
 119         $config->set('HTML.SafeObject', true);
 120         @$config->set('HTML', 'Allowed', $allowed);
 121         $config->set('Output.FlashCompat', true);
 122         $config->set('Attr.EnableID', true);
 123
 124         $purifier = new HTMLPurifier($config);
 125
 126         /**
 127          * Print a timestamped debug message.
 128          *
 129          * @param string $msg The debug message.
 130          * @return void
 131          */
 132         function _debug($msg) {
 133                 $ts = strftime("%H:%M:%S", time());
 134                 if (function_exists('posix_getpid')) {
 135                         $ts = "$ts/" . posix_getpid();
 136                 }
 137                 print "[$ts] $msg\n";
 138         } // function _debug
 139
 140         /**
 141          * Purge a feed old posts.
 142          *
 143          * @param mixed $link A database connection.
 144          * @param mixed $feed_id The id of the purged feed.
 145          * @param mixed $purge_interval Olderness of purged posts.
 146          * @param boolean $debug Set to True to enable the debug. False by default.
 147          * @access public
 148          * @return void
 149          */
 150         function purge_feed($link, $feed_id, $purge_interval, $debug = false) {
 151
 152                 if (!$purge_interval) $purge_interval = feed_purge_interval($link, $feed_id);
 153
 154                 $rows = -1;
 155
 156                 $result = db_query($link,
 157                         "SELECT owner_uid FROM ttrss_feeds WHERE id = '$feed_id'");
 158
 159                 $owner_uid = false;
 160
 161                 if (db_num_rows($result) == 1) {
 162                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 163                 }
 164
 165                 if ($purge_interval == -1 || !$purge_interval) {
 166                         if ($owner_uid) {
 167                                 ccache_update($link, $feed_id, $owner_uid);
 168                         }
 169                         return;
 170                 }
 171
 172                 if (!$owner_uid) return;
 173
 174                 if (FORCE_ARTICLE_PURGE == 0) {
 175                         $purge_unread = get_pref($link, "PURGE_UNREAD_ARTICLES",
 176                                 $owner_uid, false);
 177                 } else {
 178                         $purge_unread = true;
 179                         $purge_interval = FORCE_ARTICLE_PURGE;
 180                 }
 181
 182                 if (!$purge_unread) $query_limit = " unread = false AND ";
 183
 184                 if (DB_TYPE == "pgsql") {
 185 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 186                                 marked = false AND feed_id = '$feed_id' AND
 187                                 (SELECT date_updated FROM ttrss_entries WHERE
 188                                         id = ref_id) < NOW() - INTERVAL '$purge_interval days'"); */
 189
 190                         $pg_version = get_pgsql_version($link);
 191
 192                         if (preg_match("/^7\./", $pg_version) || preg_match("/^8\.0/", $pg_version)) {
 193
 194                                 $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 195                                         ttrss_entries.id = ref_id AND
 196                                         marked = false AND
 197                                         feed_id = '$feed_id' AND
 198                                         $query_limit
 199                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 200
 201                         } else {
 202
 203                                 $result = db_query($link, "DELETE FROM ttrss_user_entries
 204                                         USING ttrss_entries
 205                                         WHERE ttrss_entries.id = ref_id AND
 206                                         marked = false AND
 207                                         feed_id = '$feed_id' AND
 208                                         $query_limit
 209                                         ttrss_entries.date_updated < NOW() - INTERVAL '$purge_interval days'");
 210                         }
 211
 212                         $rows = pg_affected_rows($result);
 213
 214                 } else {
 215
 216 /*                      $result = db_query($link, "DELETE FROM ttrss_user_entries WHERE
 217                                 marked = false AND feed_id = '$feed_id' AND
 218                                 (SELECT date_updated FROM ttrss_entries WHERE
 219                                         id = ref_id) < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */
 220
 221                         $result = db_query($link, "DELETE FROM ttrss_user_entries
 222                                 USING ttrss_user_entries, ttrss_entries
 223                                 WHERE ttrss_entries.id = ref_id AND
 224                                 marked = false AND
 225                                 feed_id = '$feed_id' AND
 226                                 $query_limit
 227                                 ttrss_entries.date_updated < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)");
 228
 229                         $rows = mysql_affected_rows($link);
 230
 231                 }
 232
 233                 ccache_update($link, $feed_id, $owner_uid);
 234
 235                 if ($debug) {
 236                         _debug("Purged feed $feed_id ($purge_interval): deleted $rows articles");
 237                 }
 238         } // function purge_feed
 239
 240         /**
 241          * Purge old posts from old feeds. Not used anymore, purging is done after feed update.
 242          *
 243          * @param mixed $link A database connection
 244          * @param boolean $do_output Set to true to enable printed output, false by default.
 245          * @param integer $limit The maximal number of removed posts.
 246          * @access public
 247          * @return void
 248          */
 249         /* function global_purge_old_posts($link, $do_output = false, $limit = false) {
 250
 251                 $random_qpart = sql_random_function();
 252
 253                 if ($limit) {
 254                         $limit_qpart = "LIMIT $limit";
 255                 } else {
 256                         $limit_qpart = "";
 257                 }
 258
 259                 $result = db_query($link,
 260                         "SELECT id,purge_interval,owner_uid FROM ttrss_feeds
 261                                 ORDER BY $random_qpart $limit_qpart");
 262
 263                 while ($line = db_fetch_assoc($result)) {
 264
 265                         $feed_id = $line["id"];
 266                         $purge_interval = $line["purge_interval"];
 267                         $owner_uid = $line["owner_uid"];
 268
 269                         if ($purge_interval == 0) {
 270
 271                                 $tmp_result = db_query($link,
 272                                         "SELECT value FROM ttrss_user_prefs WHERE
 273                                                 pref_name = 'PURGE_OLD_DAYS' AND owner_uid = '$owner_uid'");
 274
 275                                 if (db_num_rows($tmp_result) != 0) {
 276                                         $purge_interval = db_fetch_result($tmp_result, 0, "value");
 277                                 }
 278                         }
 279
 280                         if ($do_output) {
 281 //                              print "Feed $feed_id: purge interval = $purge_interval\n";
 282                         }
 283
 284                         if ($purge_interval > 0 || FORCE_ARTICLE_PURGE) {
 285                                 purge_feed($link, $feed_id, $purge_interval, $do_output);
 286                         }
 287                 }
 288
 289                 purge_orphans($link, $do_output);
 290
 291         } // function global_purge_old_posts */
 292
 293         function feed_purge_interval($link, $feed_id) {
 294
 295                 $result = db_query($link, "SELECT purge_interval, owner_uid FROM ttrss_feeds
 296                         WHERE id = '$feed_id'");
 297
 298                 if (db_num_rows($result) == 1) {
 299                         $purge_interval = db_fetch_result($result, 0, "purge_interval");
 300                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 301
 302                         if ($purge_interval == 0) $purge_interval = get_pref($link,
 303                                 'PURGE_OLD_DAYS', $owner_uid);
 304
 305                         return $purge_interval;
 306
 307                 } else {
 308                         return -1;
 309                 }
 310         }
 311
 312         function purge_old_posts($link) {
 313
 314                 $user_id = $_SESSION["uid"];
 315
 316                 $result = db_query($link, "SELECT id,purge_interval FROM ttrss_feeds
 317                         WHERE owner_uid = '$user_id'");
 318
 319                 while ($line = db_fetch_assoc($result)) {
 320
 321                         $feed_id = $line["id"];
 322                         $purge_interval = $line["purge_interval"];
 323
 324                         if ($purge_interval == 0) $purge_interval = get_pref($link, 'PURGE_OLD_DAYS');
 325
 326                         if ($purge_interval > 0) {
 327                                 purge_feed($link, $feed_id, $purge_interval);
 328                         }
 329                 }
 330
 331                 purge_orphans($link);
 332         }
 333
 334         function purge_orphans($link, $do_output = false) {
 335
 336                 // purge orphaned posts in main content table
 337                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
 338                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
 339
 340                 if ($do_output) {
 341                         $rows = db_affected_rows($link, $result);
 342                         _debug("Purged $rows orphaned posts.");
 343                 }
 344         }
 345
 346         function get_feed_update_interval($link, $feed_id) {
 347                 $result = db_query($link, "SELECT owner_uid, update_interval FROM
 348                         ttrss_feeds WHERE id = '$feed_id'");
 349
 350                 if (db_num_rows($result) == 1) {
 351                         $update_interval = db_fetch_result($result, 0, "update_interval");
 352                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 353
 354                         if ($update_interval != 0) {
 355                                 return $update_interval;
 356                         } else {
 357                                 return get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $owner_uid, false);
 358                         }
 359
 360                 } else {
 361                         return -1;
 362                 }
 363         }
 364
 365         function fetch_file_contents($url, $type = false, $login = false, $pass = false) {
 366                 $login = urlencode($login);
 367                 $pass = urlencode($pass);
 368
 369                 if (function_exists('curl_init')) {
 370                         $ch = curl_init($url);
 371
 372                         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 15);
 373                         curl_setopt($ch, CURLOPT_TIMEOUT, 45);
 374                         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
 375                         curl_setopt($ch, CURLOPT_MAXREDIRS, 20);
 376                         curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 377                         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 378                         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
 379                         curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 380
 381                         if ($login && $pass)
 382                                 curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");
 383
 384                         $contents = @curl_exec($ch);
 385                         if ($contents === false) {
 386                                 curl_close($ch);
 387                                 return false;
 388                         }
 389
 390                         $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 391                         $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
 392                         curl_close($ch);
 393
 394                         if ($http_code != 200 || $type && strpos($content_type, "$type") === false) {
 395                                 return false;
 396                         }
 397
 398                         return $contents;
 399                 } else {
 400                         if ($login && $pass && $updated != 3) {
 401                                 $url_parts = array();
 402
 403                                 preg_match("/(^[^:]*):\/\/(.*)/", $url, $url_parts);
 404
 405                                 if ($url_parts[1] && $url_parts[2]) {
 406                                         $url = $url_parts[1] . "://$login:$pass@" . $url_parts[2];
 407                                 }
 408                         }
 409
 410                         return @file_get_contents($url);
 411                 }
 412
 413         }
 414
 415         /**
 416          * Try to determine the favicon URL for a feed.
 417          * adapted from wordpress favicon plugin by Jeff Minard (http://thecodepro.com/)
 418          * http://dev.wp-plugins.org/file/favatars/trunk/favatars.php
 419          *
 420          * @param string $url A feed or page URL
 421          * @access public
 422          * @return mixed The favicon URL, or false if none was found.
 423          */
 424         function get_favicon_url($url) {
 425
 426                 $favicon_url = false;
 427
 428                 if ($html = @fetch_file_contents($url)) {
 429
 430                         libxml_use_internal_errors(true);
 431
 432                         $doc = new DOMDocument();
 433                         $doc->loadHTML($html);
 434                         $xpath = new DOMXPath($doc);
 435
 436                         $base = $xpath->query('/html/head/base');
 437                         foreach ($base as $b) {
 438                                 $url = $b->getAttribute("href");
 439                                 break;
 440                         }
 441
 442                         $entries = $xpath->query('/html/head/link[@rel="shortcut icon" or @rel="icon"]');
 443                         if (count($entries) > 0) {
 444                                 foreach ($entries as $entry) {
 445                                         $favicon_url = rewrite_relative_url($url, $entry->getAttribute("href"));
 446                                         break;
 447                                 }
 448                         }
 449                 }
 450
 451                 if (!$favicon_url)
 452                         $favicon_url = rewrite_relative_url($url, "/favicon.ico");
 453
 454                 return $favicon_url;
 455         } // function get_favicon_url
 456
 457         function check_feed_favicon($site_url, $feed, $link) {
 458                 $favicon_url = get_favicon_url($site_url);
 459
 460 #               print "FAVICON [$site_url]: $favicon_url\n";
 461
 462                 $icon_file = ICONS_DIR . "/$feed.ico";
 463
 464                 if ($favicon_url && !file_exists($icon_file)) {
 465                         $contents = fetch_file_contents($favicon_url, "image");
 466                         if ($contents) {
 467                                 $fp = fopen($icon_file, "w");
 468
 469                                 if ($fp) {
 470                                         fwrite($fp, $contents);
 471                                         fclose($fp);
 472                                         chmod($icon_file, 0644);
 473                                 }
 474                         }
 475                 }
 476         }
 477
 478         function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false) {
 479
 480                 global $memcache;
 481
 482                 /* Update all feeds with the same URL to utilize memcache */
 483
 484                 if ($memcache) {
 485                         $result = db_query($link, "SELECT f1.id
 486                                 FROM ttrss_feeds AS f1, ttrss_feeds AS f2
 487                                 WHERE   f2.feed_url = f1.feed_url AND f2.id = '$feed'");
 488
 489                         while ($line = db_fetch_assoc($result)) {
 490                                 update_rss_feed_real($link, $line["id"], $ignore_daemon, $no_cache);
 491                         }
 492                 } else {
 493                         update_rss_feed_real($link, $feed, $ignore_daemon, $no_cache);
 494                 }
 495         }
 496
 497         function update_rss_feed_real($link, $feed, $ignore_daemon = false, $no_cache = false) {
 498
 499                 global $memcache;
 500
 501                 if (!$_REQUEST["daemon"] && !$ignore_daemon) {
 502                         return false;
 503                 }
 504
 505                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 506                         _debug("update_rss_feed: start");
 507                 }
 508
 509                 if (!$ignore_daemon) {
 510
 511                         if (DB_TYPE == "pgsql") {
 512                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
 513                                 } else {
 514                                         $updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
 515                                 }
 516
 517                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 518                                 auth_pass,cache_images,update_method
 519                                 FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
 520
 521                 } else {
 522
 523                         $result = db_query($link, "SELECT id,update_interval,auth_login,
 524                                 feed_url,auth_pass,cache_images,update_method,last_updated,
 525                                 mark_unread_on_update, owner_uid, update_on_checksum_change,
 526                                 pubsub_state
 527                                 FROM ttrss_feeds WHERE id = '$feed'");
 528
 529                 }
 530
 531                 if (db_num_rows($result) == 0) {
 532                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 533                                 _debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
 534                         }
 535                         return false;
 536                 }
 537
 538                 $update_method = db_fetch_result($result, 0, "update_method");
 539                 $last_updated = db_fetch_result($result, 0, "last_updated");
 540                 $owner_uid = db_fetch_result($result, 0, "owner_uid");
 541                 $mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
 542                         0, "mark_unread_on_update"));
 543                 $update_on_checksum_change = sql_bool_to_bool(db_fetch_result($result,
 544                         0, "update_on_checksum_change"));
 545                 $pubsub_state = db_fetch_result($result, 0, "pubsub_state");
 546
 547                 db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
 548                         WHERE id = '$feed'");
 549
 550                 $auth_login = db_fetch_result($result, 0, "auth_login");
 551                 $auth_pass = db_fetch_result($result, 0, "auth_pass");
 552
 553                 if ($update_method == 0)
 554                         $update_method = DEFAULT_UPDATE_METHOD + 1;
 555
 556                 // 1 - Magpie
 557                 // 2 - SimplePie
 558                 // 3 - Twitter OAuth
 559
 560                 if ($update_method == 2)
 561                         $use_simplepie = true;
 562                 else
 563                         $use_simplepie = false;
 564
 565                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 566                         _debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
 567                 }
 568
 569                 if ($update_method == 1) {
 570                         $auth_login = urlencode($auth_login);
 571                         $auth_pass = urlencode($auth_pass);
 572                 }
 573
 574                 $update_interval = db_fetch_result($result, 0, "update_interval");
 575                 $cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
 576                 $fetch_url = db_fetch_result($result, 0, "feed_url");
 577
 578                 if ($update_interval < 0) { return; }
 579
 580                 $feed = db_escape_string($feed);
 581
 582                 if ($auth_login && $auth_pass && $updated != 3) {
 583                         $url_parts = array();
 584                         preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
 585
 586                         if ($url_parts[1] && $url_parts[2]) {
 587                                 $fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
 588                         }
 589
 590                 }
 591
 592                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 593                         _debug("update_rss_feed: fetching [$fetch_url]...");
 594                 }
 595
 596                 $obj_id = md5("FDATA:$use_simplepie:$fetch_url");
 597
 598                 if ($memcache && $obj = $memcache->get($obj_id)) {
 599
 600                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 601                                 _debug("update_rss_feed: data found in memcache.");
 602                         }
 603
 604                         $rss = $obj;
 605
 606                 } else {
 607
 608                         if ($update_method == 3) {
 609                                 $rss = fetch_twitter_rss($link, $fetch_url, $owner_uid);
 610                         } else if ($update_method == 1) {
 611
 612                                 define('MAGPIE_CACHE_AGE', get_feed_update_interval($link, $feed) * 60);
 613                                 define('MAGPIE_CACHE_ON', !$no_cache);
 614                                 define('MAGPIE_FETCH_TIME_OUT', 60);
 615                                 define('MAGPIE_CACHE_DIR', CACHE_DIR . "/magpie");
 616
 617                                 $rss = @fetch_rss($fetch_url);
 618                         } else {
 619                                 $simplepie_cache_dir = CACHE_DIR . "/simplepie";
 620
 621                                 if (!is_dir($simplepie_cache_dir)) {
 622                                         mkdir($simplepie_cache_dir);
 623                                 }
 624
 625                                 $rss = new SimplePie();
 626                                 $rss->set_useragent(SELF_USER_AGENT);
 627         #                       $rss->set_timeout(10);
 628                                 $rss->set_feed_url($fetch_url);
 629                                 $rss->set_output_encoding('UTF-8');
 630
 631                                 if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
 632
 633                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 634                                                 _debug("enabling image cache");
 635                                         }
 636
 637                                         $rss->set_image_handler("image.php", 'i');
 638                                 }
 639
 640                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 641                                         _debug("feed update interval (sec): " .
 642                                                 get_feed_update_interval($link, $feed)*60);
 643                                 }
 644
 645                                 $rss->enable_cache(!$no_cache);
 646
 647                                 if (!$no_cache) {
 648                                         $rss->set_cache_location($simplepie_cache_dir);
 649                                         $rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
 650                                 }
 651
 652                                 $rss->init();
 653                         }
 654
 655                         if ($memcache && $rss) $memcache->add($obj_id, $rss, 0, 300);
 656                 }
 657
 658 //              print_r($rss);
 659
 660                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 661                         _debug("update_rss_feed: fetch done, parsing...");
 662                 }
 663
 664                 $feed = db_escape_string($feed);
 665
 666                 if ($update_method == 2) {
 667                         $fetch_ok = !$rss->error();
 668                 } else {
 669                         $fetch_ok = !!$rss;
 670                 }
 671
 672                 if ($fetch_ok) {
 673
 674                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 675                                 _debug("update_rss_feed: processing feed data...");
 676                         }
 677
 678 //                      db_query($link, "BEGIN");
 679
 680                         $result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
 681                                 FROM ttrss_feeds WHERE id = '$feed'");
 682
 683                         $registered_title = db_fetch_result($result, 0, "title");
 684                         $orig_icon_url = db_fetch_result($result, 0, "icon_url");
 685                         $orig_site_url = db_fetch_result($result, 0, "site_url");
 686
 687                         $owner_uid = db_fetch_result($result, 0, "owner_uid");
 688
 689                         if ($use_simplepie) {
 690                                 $site_url = $rss->get_link();
 691                         } else {
 692                                 $site_url = $rss->channel["link"];
 693                         }
 694
 695                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 696                                 _debug("update_rss_feed: checking favicon...");
 697                         }
 698
 699                         check_feed_favicon($site_url, $feed, $link);
 700
 701                         if (!$registered_title || $registered_title == "[Unknown]") {
 702
 703                                 if ($use_simplepie) {
 704                                         $feed_title = db_escape_string($rss->get_title());
 705                                 } else {
 706                                         $feed_title = db_escape_string($rss->channel["title"]);
 707                                 }
 708
 709                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 710                                         _debug("update_rss_feed: registering title: $feed_title");
 711                                 }
 712
 713                                 db_query($link, "UPDATE ttrss_feeds SET
 714                                         title = '$feed_title' WHERE id = '$feed'");
 715                         }
 716
 717                         // weird, weird Magpie
 718                         if (!$use_simplepie) {
 719                                 if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
 720                         }
 721
 722                         if ($site_url && $orig_site_url != db_escape_string($site_url)) {
 723                                 db_query($link, "UPDATE ttrss_feeds SET
 724                                         site_url = '$site_url' WHERE id = '$feed'");
 725                         }
 726
 727 //                      print "I: " . $rss->channel["image"]["url"];
 728
 729                         if (!$use_simplepie) {
 730                                 $icon_url = db_escape_string($rss->image["url"]);
 731                         } else {
 732                                 $icon_url = db_escape_string($rss->get_image_url());
 733                         }
 734
 735                         $icon_url = substr($icon_url, 0, 250);
 736
 737                         if ($icon_url && $orig_icon_url != $icon_url) {
 738                                 db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
 739                         }
 740
 741                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 742                                 _debug("update_rss_feed: loading filters...");
 743                         }
 744
 745                         $filters = load_filters($link, $feed, $owner_uid);
 746
 747                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'] == 2) {
 748                                 print_r($filters);
 749                         }
 750
 751                         if ($use_simplepie) {
 752                                 $iterator = $rss->get_items();
 753                         } else {
 754                                 $iterator = $rss->items;
 755                                 if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
 756                                 if (!$iterator || !is_array($iterator)) $iterator = $rss;
 757                         }
 758
 759                         if (!is_array($iterator)) {
 760                                 /* db_query($link, "UPDATE ttrss_feeds
 761                                         SET last_error = 'Parse error: can\'t find any articles.'
 762                                         WHERE id = '$feed'"); */
 763
 764                                 // clear any errors and mark feed as updated if fetched okay
 765                                 // even if it's blank
 766
 767                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 768                                         _debug("update_rss_feed: entry iterator is not an array, no articles?");
 769                                 }
 770
 771                                 db_query($link, "UPDATE ttrss_feeds
 772                                         SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 773
 774                                 return; // no articles
 775                         }
 776
 777                         if ($pubsub_state != 2) {
 778
 779                                 $feed_hub_url = false;
 780                                 if ($use_simplepie) {
 781                                         $links = $rss->get_links('hub');
 782
 783                                         if ($links && is_array($links)) {
 784                                                 foreach ($links as $l) {
 785                                                         $feed_hub_url = $l;
 786                                                         break;
 787                                                 }
 788                                         }
 789
 790                                 } else {
 791                                         $atom = $rss->channel['atom'];
 792
 793                                         if ($atom) {
 794                                                 if ($atom['link@rel'] == 'hub') {
 795                                                         $feed_hub_url = $atom['link@href'];
 796                                                 }
 797
 798                                                 if (!$feed_hub_url && $atom['link#'] > 1) {
 799                                                         for ($i = 2; $i <= $atom['link#']; $i++) {
 800                                                                 if ($atom["link#$i@rel"] == 'hub') {
 801                                                                         $feed_hub_url = $atom["link#$i@href"];
 802                                                                         break;
 803                                                                 }
 804                                                         }
 805                                                 }
 806                                         } else {
 807                                                 $feed_hub_url = $rss->channel['link_hub'];
 808                                         }
 809                                 }
 810
 811                                 if ($feed_hub_url && function_exists('curl_init')) {
 812                                         $callback_url = get_self_url_prefix() .
 813                                                 "/backend.php?op=pubsub&id=$feed";
 814
 815                                         $s = new Subscriber($feed_hub_url, $callback_url);
 816
 817                                         $s->subscribe($fetch_url);
 818
 819                                         db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 1
 820                                                 WHERE id = '$feed'");
 821                                 }
 822                         }
 823
 824                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 825                                 _debug("update_rss_feed: processing articles...");
 826                         }
 827
 828                         foreach ($iterator as $item) {
 829
 830                                 if ($_REQUEST['xdebug'] == 2) {
 831                                         print_r($item);
 832                                 }
 833
 834                                 if ($use_simplepie) {
 835                                         $entry_guid = $item->get_id();
 836                                         if (!$entry_guid) $entry_guid = $item->get_link();
 837                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item->get_title());
 838
 839                                 } else {
 840
 841                                         $entry_guid = $item["id"];
 842
 843                                         if (!$entry_guid) $entry_guid = $item["guid"];
 844                                         if (!$entry_guid) $entry_guid = $item["about"];
 845                                         if (!$entry_guid) $entry_guid = $item["link"];
 846                                         if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
 847                                 }
 848
 849                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 850                                         _debug("update_rss_feed: guid $entry_guid");
 851                                 }
 852
 853                                 if (!$entry_guid) continue;
 854
 855                                 $entry_timestamp = "";
 856
 857                                 if ($use_simplepie) {
 858                                         $entry_timestamp = strtotime($item->get_date());
 859                                 } else {
 860                                         $rss_2_date = $item['pubdate'];
 861                                         $rss_1_date = $item['dc']['date'];
 862                                         $atom_date = $item['issued'];
 863                                         if (!$atom_date) $atom_date = $item['updated'];
 864
 865                                         if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
 866                                         if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
 867                                         if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
 868
 869                                 }
 870
 871                                 if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
 872                                         $entry_timestamp = time();
 873                                         $no_orig_date = 'true';
 874                                 } else {
 875                                         $no_orig_date = 'false';
 876                                 }
 877
 878                                 $entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
 879
 880                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 881                                         _debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
 882                                 }
 883
 884                                 if ($use_simplepie) {
 885                                         $entry_title = $item->get_title();
 886                                 } else {
 887                                         $entry_title = trim(strip_tags($item["title"]));
 888                                 }
 889
 890                                 if ($use_simplepie) {
 891                                         $entry_link = $item->get_link();
 892                                 } else {
 893                                         // strange Magpie workaround
 894                                         $entry_link = $item["link_"];
 895                                         if (!$entry_link) $entry_link = $item["link"];
 896                                 }
 897
 898                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 899                                         _debug("update_rss_feed: title $entry_title");
 900                                 }
 901
 902                                 if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
 903
 904                                 $entry_link = strip_tags($entry_link);
 905
 906                                 if ($use_simplepie) {
 907                                         $entry_content = $item->get_content();
 908                                         if (!$entry_content) $entry_content = $item->get_description();
 909                                 } else {
 910                                         $entry_content = $item["content:escaped"];
 911
 912                                         if (!$entry_content) $entry_content = $item["content:encoded"];
 913                                         if (!$entry_content) $entry_content = $item["content"]["encoded"];
 914                                         if (!$entry_content) $entry_content = $item["content"];
 915
 916                                         // Magpie bugs are getting ridiculous
 917                                         if (trim($entry_content) == "Array") $entry_content = false;
 918
 919                                         if (!$entry_content) $entry_content = $item["atom_content"];
 920                                         if (!$entry_content) $entry_content = $item["summary"];
 921
 922                                         if (!$entry_content ||
 923                                                 strlen($entry_content) < strlen($item["description"])) {
 924                                                         $entry_content = $item["description"];
 925                                         };
 926
 927                                         // WTF
 928                                         if (is_array($entry_content)) {
 929                                                 $entry_content = $entry_content["encoded"];
 930                                                 if (!$entry_content) $entry_content = $entry_content["escaped"];
 931                                         }
 932                                 }
 933
 934                                 if ($_REQUEST["xdebug"] == 2) {
 935                                         print "update_rss_feed: content: ";
 936                                         print_r(htmlspecialchars($entry_content));
 937                                 }
 938
 939                                 $entry_content_unescaped = $entry_content;
 940
 941                                 if ($use_simplepie) {
 942                                         $entry_comments = strip_tags($item->data["comments"]);
 943                                         if ($item->get_author()) {
 944                                                 $entry_author_item = $item->get_author();
 945                                                 $entry_author = $entry_author_item->get_name();
 946                                                 if (!$entry_author) $entry_author = $entry_author_item->get_email();
 947
 948                                                 $entry_author = db_escape_string($entry_author);
 949                                         }
 950                                 } else {
 951                                         $entry_comments = strip_tags($item["comments"]);
 952
 953                                         $entry_author = db_escape_string(strip_tags($item['dc']['creator']));
 954
 955                                         if ($item['author']) {
 956
 957                                                 if (is_array($item['author'])) {
 958
 959                                                         if (!$entry_author) {
 960                                                                 $entry_author = db_escape_string(strip_tags($item['author']['name']));
 961                                                         }
 962
 963                                                         if (!$entry_author) {
 964                                                                 $entry_author = db_escape_string(strip_tags($item['author']['email']));
 965                                                         }
 966                                                 }
 967
 968                                                 if (!$entry_author) {
 969                                                         $entry_author = db_escape_string(strip_tags($item['author']));
 970                                                 }
 971                                         }
 972                                 }
 973
 974                                 if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
 975
 976                                 $entry_guid = db_escape_string(strip_tags($entry_guid));
 977                                 $entry_guid = mb_substr($entry_guid, 0, 250);
 978
 979                                 $result = db_query($link, "SELECT id FROM       ttrss_entries
 980                                         WHERE guid = '$entry_guid'");
 981
 982                                 $entry_content = db_escape_string($entry_content, false);
 983
 984                                 $content_hash = "SHA1:" . sha1(strip_tags($entry_content));
 985
 986                                 $entry_title = db_escape_string($entry_title);
 987                                 $entry_link = db_escape_string($entry_link);
 988                                 $entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
 989                                 $entry_author = mb_substr($entry_author, 0, 250);
 990
 991                                 if ($use_simplepie) {
 992                                         $num_comments = 0; #FIXME#
 993                                 } else {
 994                                         $num_comments = db_escape_string($item["slash"]["comments"]);
 995                                 }
 996
 997                                 if (!$num_comments) $num_comments = 0;
 998
 999                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1000                                         _debug("update_rss_feed: looking for tags [1]...");
1001                                 }
1002
1003                                 // parse <category> entries into tags
1004
1005                                 $additional_tags = array();
1006
1007                                 if ($use_simplepie) {
1008
1009                                         $additional_tags_src = $item->get_categories();
1010
1011                                         if (is_array($additional_tags_src)) {
1012                                                 foreach ($additional_tags_src as $tobj) {
1013                                                         array_push($additional_tags, $tobj->get_term());
1014                                                 }
1015                                         }
1016
1017                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1018                                                 _debug("update_rss_feed: category tags:");
1019                                                 print_r($additional_tags);
1020                                         }
1021
1022                                 } else {
1023
1024                                         $t_ctr = $item['category#'];
1025
1026                                         if ($t_ctr == 0) {
1027                                                 $additional_tags = array();
1028                                         } else if ($t_ctr > 0) {
1029                                                 $additional_tags = array($item['category']);
1030
1031                                                 if ($item['category@term']) {
1032                                                         array_push($additional_tags, $item['category@term']);
1033                                                 }
1034
1035                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1036                                                         if ($item["category#$i"]) {
1037                                                                 array_push($additional_tags, $item["category#$i"]);
1038                                                         }
1039
1040                                                         if ($item["category#$i@term"]) {
1041                                                                 array_push($additional_tags, $item["category#$i@term"]);
1042                                                         }
1043                                                 }
1044                                         }
1045
1046                                         // parse <dc:subject> elements
1047
1048                                         $t_ctr = $item['dc']['subject#'];
1049
1050                                         if ($t_ctr > 0) {
1051                                                 array_push($additional_tags, $item['dc']['subject']);
1052
1053                                                 for ($i = 0; $i <= $t_ctr; $i++ ) {
1054                                                         if ($item['dc']["subject#$i"]) {
1055                                                                 array_push($additional_tags, $item['dc']["subject#$i"]);
1056                                                         }
1057                                                 }
1058                                         }
1059                                 }
1060
1061                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1062                                         _debug("update_rss_feed: looking for tags [2]...");
1063                                 }
1064
1065                                 /* taaaags */
1066                                 // <a href="..." rel="tag">Xorg</a>, //
1067
1068                                 $entry_tags = null;
1069
1070                                 preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
1071                                         $entry_content_unescaped, $entry_tags);
1072
1073                                 $entry_tags = $entry_tags[1];
1074
1075                                 $entry_tags = array_merge($entry_tags, $additional_tags);
1076                                 $entry_tags = array_unique($entry_tags);
1077
1078                                 for ($i = 0; $i < count($entry_tags); $i++)
1079                                         $entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
1080
1081                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1082                                         _debug("update_rss_feed: unfiltered tags found:");
1083                                         print_r($entry_tags);
1084                                 }
1085
1086                                 # sanitize content
1087
1088                                 $entry_content = sanitize_article_content($entry_content);
1089                                 $entry_title = sanitize_article_content($entry_title);
1090
1091                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1092                                         _debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
1093                                 }
1094
1095                                 db_query($link, "BEGIN");
1096
1097                                 if (db_num_rows($result) == 0) {
1098
1099                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1100                                                 _debug("update_rss_feed: base guid not found");
1101                                         }
1102
1103                                         // base post entry does not exist, create it
1104
1105                                         $result = db_query($link,
1106                                                 "INSERT INTO ttrss_entries
1107                                                         (title,
1108                                                         guid,
1109                                                         link,
1110                                                         updated,
1111                                                         content,
1112                                                         content_hash,
1113                                                         no_orig_date,
1114                                                         date_updated,
1115                                                         date_entered,
1116                                                         comments,
1117                                                         num_comments,
1118                                                         author)
1119                                                 VALUES
1120                                                         ('$entry_title',
1121                                                         '$entry_guid',
1122                                                         '$entry_link',
1123                                                         '$entry_timestamp_fmt',
1124                                                         '$entry_content',
1125                                                         '$content_hash',
1126                                                         $no_orig_date,
1127                                                         NOW(),
1128                                                         NOW(),
1129                                                         '$entry_comments',
1130                                                         '$num_comments',
1131                                                         '$entry_author')");
1132                                 } else {
1133                                         // we keep encountering the entry in feeds, so we need to
1134                                         // update date_updated column so that we don't get horrible
1135                                         // dupes when the entry gets purged and reinserted again e.g.
1136                                         // in the case of SLOW SLOW OMG SLOW updating feeds
1137
1138                                         $base_entry_id = db_fetch_result($result, 0, "id");
1139
1140                                         db_query($link, "UPDATE ttrss_entries SET date_updated = NOW()
1141                                                 WHERE id = '$base_entry_id'");
1142                                 }
1143
1144                                 // now it should exist, if not - bad luck then
1145
1146                                 $result = db_query($link, "SELECT
1147                                                 id,content_hash,no_orig_date,title,
1148                                                 ".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
1149                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
1150                                                 num_comments
1151                                         FROM
1152                                                 ttrss_entries
1153                                         WHERE guid = '$entry_guid'");
1154
1155                                 $entry_ref_id = 0;
1156                                 $entry_int_id = 0;
1157
1158                                 if (db_num_rows($result) == 1) {
1159
1160                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1161                                                 _debug("update_rss_feed: base guid found, checking for user record");
1162                                         }
1163
1164                                         // this will be used below in update handler
1165                                         $orig_content_hash = db_fetch_result($result, 0, "content_hash");
1166                                         $orig_title = db_fetch_result($result, 0, "title");
1167                                         $orig_num_comments = db_fetch_result($result, 0, "num_comments");
1168                                         $orig_date_updated = strtotime(db_fetch_result($result,
1169                                                 0, "date_updated"));
1170
1171                                         $ref_id = db_fetch_result($result, 0, "id");
1172                                         $entry_ref_id = $ref_id;
1173
1174                                         // check for user post link to main table
1175
1176                                         // do we allow duplicate posts with same GUID in different feeds?
1177                                         if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
1178                                                 $dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
1179                                         } else {
1180                                                 $dupcheck_qpart = "";
1181                                         }
1182
1183                                         /* Collect article tags here so we could filter by them: */
1184
1185                                         $article_filters = get_article_filters($filters, $entry_title,
1186                                                 $entry_content, $entry_link, $entry_timestamp, $entry_author,
1187                                                 $entry_tags);
1188
1189                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1190                                                 _debug("update_rss_feed: article filters: ");
1191                                                 if (count($article_filters) != 0) {
1192                                                         print_r($article_filters);
1193                                                 }
1194                                         }
1195
1196                                         if (find_article_filter($article_filters, "filter")) {
1197                                                 db_query($link, "COMMIT"); // close transaction in progress
1198                                                 continue;
1199                                         }
1200
1201                                         $score = calculate_article_score($article_filters);
1202
1203                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1204                                                 _debug("update_rss_feed: initial score: $score");
1205                                         }
1206
1207                                         $query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
1208                                                         ref_id = '$ref_id' AND owner_uid = '$owner_uid'
1209                                                         $dupcheck_qpart";
1210
1211 //                                      if ($_REQUEST["xdebug"]) print "$query\n";
1212
1213                                         $result = db_query($link, $query);
1214
1215                                         // okay it doesn't exist - create user entry
1216                                         if (db_num_rows($result) == 0) {
1217
1218                                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1219                                                         _debug("update_rss_feed: user record not found, creating...");
1220                                                 }
1221
1222                                                 if ($score >= -500 && !find_article_filter($article_filters, 'catchup')) {
1223                                                         $unread = 'true';
1224                                                         $last_read_qpart = 'NULL';
1225                                                 } else {
1226                                                         $unread = 'false';
1227                                                         $last_read_qpart = 'NOW()';
1228                                                 }
1229
1230                                                 if (find_article_filter($article_filters, 'mark') || $score > 1000) {
1231                                                         $marked = 'true';
1232                                                 } else {
1233                                                         $marked = 'false';
1234                                                 }
1235
1236                                                 if (find_article_filter($article_filters, 'publish')) {
1237                                                         $published = 'true';
1238                                                 } else {
1239                                                         $published = 'false';
1240                                                 }
1241
1242                                                 $result = db_query($link,
1243                                                         "INSERT INTO ttrss_user_entries
1244                                                                 (ref_id, owner_uid, feed_id, unread, last_read, marked,
1245                                                                         published, score, tag_cache, label_cache)
1246                                                         VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
1247                                                                 $last_read_qpart, $marked, $published, '$score', '', '')");
1248
1249                                                 if (PUBSUBHUBBUB_HUB && $published == 'true') {
1250                                                         $rss_link = get_self_url_prefix() .
1251                                                                 "/backend.php?op=rss&id=-2&key=" .
1252                                                                 get_feed_access_key($link, -2, false, $owner_uid);
1253
1254                                                         $p = new Publisher(PUBSUBHUBBUB_HUB);
1255
1256                                                         $pubsub_result = $p->publish_update($rss_link);
1257                                                 }
1258
1259                                                 $result = db_query($link,
1260                                                         "SELECT int_id FROM ttrss_user_entries WHERE
1261                                                                 ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
1262                                                                 feed_id = '$feed' LIMIT 1");
1263
1264                                                 if (db_num_rows($result) == 1) {
1265                                                         $entry_int_id = db_fetch_result($result, 0, "int_id");
1266                                                 }
1267                                         } else {
1268                                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1269                                                         _debug("update_rss_feed: user record FOUND");
1270                                                 }
1271
1272                                                 $entry_ref_id = db_fetch_result($result, 0, "ref_id");
1273                                                 $entry_int_id = db_fetch_result($result, 0, "int_id");
1274                                         }
1275
1276                                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1277                                                 _debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
1278                                         }
1279
1280                                         $post_needs_update = false;
1281
1282                                         if ($content_hash != $orig_content_hash) {
1283 //                                              print "<!-- [$entry_title] $content_hash vs $orig_content_hash -->";
1284                                                 $post_needs_update = true;
1285                                         }
1286
1287                                         if (db_escape_string($orig_title) != $entry_title) {
1288                                                 $post_needs_update = true;
1289                                         }
1290
1291                                         if ($orig_num_comments != $num_comments) {
1292                                                 $post_needs_update = true;
1293                                         }
1294
1295 //                                      this doesn't seem to be very reliable
1296 //
1297 //                                      if ($orig_timestamp != $entry_timestamp && !$orig_no_orig_date) {
1298 //                                              $post_needs_update = true;
1299 //                                      }
1300
1301                                         // if post needs update, update it and mark all user entries
1302                                         // linking to this post as updated
1303                                         if ($post_needs_update) {
1304
1305                                                 if (defined('DAEMON_EXTENDED_DEBUG')) {
1306                                                         _debug("update_rss_feed: post $entry_guid needs update...");
1307                                                 }
1308
1309 //                                              print "<!-- post $orig_title needs update : $post_needs_update -->";
1310
1311                                                 db_query($link, "UPDATE ttrss_entries
1312                                                         SET title = '$entry_title', content = '$entry_content',
1313                                                                 content_hash = '$content_hash',
1314                                                                 updated = '$entry_timestamp_fmt',
1315                                                                 num_comments = '$num_comments'
1316                                                         WHERE id = '$ref_id'");
1317
1318                                                 if ($mark_unread_on_update) {
1319                                                         db_query($link, "UPDATE ttrss_user_entries
1320                                                                 SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
1321                                                 } else if ($update_on_checksum_change) {
1322                                                         db_query($link, "UPDATE ttrss_user_entries
1323                                                                 SET last_read = null WHERE ref_id = '$ref_id' AND unread = false");
1324                                                 }
1325
1326                                         }
1327                                 }
1328
1329                                 db_query($link, "COMMIT");
1330
1331                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1332                                         _debug("update_rss_feed: assigning labels...");
1333                                 }
1334
1335                                 assign_article_to_labels($link, $entry_ref_id, $article_filters,
1336                                         $owner_uid);
1337
1338                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1339                                         _debug("update_rss_feed: looking for enclosures...");
1340                                 }
1341
1342                                 // enclosures
1343
1344                                 $enclosures = array();
1345
1346                                 if ($use_simplepie) {
1347                                         $encs = $item->get_enclosures();
1348
1349                                         if (is_array($encs)) {
1350                                                 foreach ($encs as $e) {
1351                                                         $e_item = array(
1352                                                                 $e->link, $e->type, $e->length);
1353
1354                                                         array_push($enclosures, $e_item);
1355                                                 }
1356                                         }
1357
1358                                 } else {
1359                                         // <enclosure>
1360
1361                                         $e_ctr = $item['enclosure#'];
1362
1363                                         if ($e_ctr > 0) {
1364                                                 $e_item = array($item['enclosure@url'],
1365                                                         $item['enclosure@type'],
1366                                                         $item['enclosure@length']);
1367
1368                                                 array_push($enclosures, $e_item);
1369
1370                                                 for ($i = 0; $i <= $e_ctr; $i++ ) {
1371
1372                                                         if ($item["enclosure#$i@url"]) {
1373                                                                 $e_item = array($item["enclosure#$i@url"],
1374                                                                         $item["enclosure#$i@type"],
1375                                                                         $item["enclosure#$i@length"]);
1376                                                                 array_push($enclosures, $e_item);
1377                                                         }
1378                                                 }
1379                                         }
1380
1381                                         // <media:content>
1382                                         // can there be many of those? yes -fox
1383
1384                                         $m_ctr = $item['media']['content#'];
1385
1386                                         if ($m_ctr > 0) {
1387                                                 $e_item = array($item['media']['content@url'],
1388                                                         $item['media']['content@medium'],
1389                                                         $item['media']['content@length']);
1390
1391                                                 array_push($enclosures, $e_item);
1392
1393                                                 for ($i = 0; $i <= $m_ctr; $i++ ) {
1394
1395                                                         if ($item["media"]["content#$i@url"]) {
1396                                                                 $e_item = array($item["media"]["content#$i@url"],
1397                                                                         $item["media"]["content#$i@medium"],
1398                                                                         $item["media"]["content#$i@length"]);
1399                                                                 array_push($enclosures, $e_item);
1400                                                         }
1401                                                 }
1402
1403                                         }
1404                                 }
1405
1406
1407                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1408                                         _debug("update_rss_feed: article enclosures:");
1409                                         print_r($enclosures);
1410                                 }
1411
1412                                 db_query($link, "BEGIN");
1413
1414                                 foreach ($enclosures as $enc) {
1415                                         $enc_url = db_escape_string($enc[0]);
1416                                         $enc_type = db_escape_string($enc[1]);
1417                                         $enc_dur = db_escape_string($enc[2]);
1418
1419                                         $result = db_query($link, "SELECT id FROM ttrss_enclosures
1420                                                 WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
1421
1422                                         if (db_num_rows($result) == 0) {
1423                                                 db_query($link, "INSERT INTO ttrss_enclosures
1424                                                         (content_url, content_type, title, duration, post_id) VALUES
1425                                                         ('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
1426                                         }
1427                                 }
1428
1429                                 db_query($link, "COMMIT");
1430
1431                                 // check for manual tags (we have to do it here since they're loaded from filters)
1432
1433                                 foreach ($article_filters as $f) {
1434                                         if ($f[0] == "tag") {
1435
1436                                                 $manual_tags = trim_array(split(",", $f[1]));
1437
1438                                                 foreach ($manual_tags as $tag) {
1439                                                         if (tag_is_valid($tag)) {
1440                                                                 array_push($entry_tags, $tag);
1441                                                         }
1442                                                 }
1443                                         }
1444                                 }
1445
1446                                 // Skip boring tags
1447
1448                                 $boring_tags = trim_array(split(",", mb_strtolower(get_pref($link,
1449                                         'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
1450
1451                                 $filtered_tags = array();
1452                                 $tags_to_cache = array();
1453
1454                                 if ($entry_tags && is_array($entry_tags)) {
1455                                         foreach ($entry_tags as $tag) {
1456                                                 if (array_search($tag, $boring_tags) === false) {
1457                                                         array_push($filtered_tags, $tag);
1458                                                 }
1459                                         }
1460                                 }
1461
1462                                 $filtered_tags = array_unique($filtered_tags);
1463
1464                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1465                                         _debug("update_rss_feed: filtered article tags:");
1466                                         print_r($filtered_tags);
1467                                 }
1468
1469                                 // Save article tags in the database
1470
1471                                 if (count($filtered_tags) > 0) {
1472
1473                                         db_query($link, "BEGIN");
1474
1475                                         foreach ($filtered_tags as $tag) {
1476
1477                                                 $tag = sanitize_tag($tag);
1478                                                 $tag = db_escape_string($tag);
1479
1480                                                 if (!tag_is_valid($tag)) continue;
1481
1482                                                 $result = db_query($link, "SELECT id FROM ttrss_tags
1483                                                         WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
1484                                                         owner_uid = '$owner_uid' LIMIT 1");
1485
1486                                                         if ($result && db_num_rows($result) == 0) {
1487
1488                                                                 db_query($link, "INSERT INTO ttrss_tags
1489                                                                         (owner_uid,tag_name,post_int_id)
1490                                                                         VALUES ('$owner_uid','$tag', '$entry_int_id')");
1491                                                         }
1492
1493                                                 array_push($tags_to_cache, $tag);
1494                                         }
1495
1496                                         /* update the cache */
1497
1498                                         $tags_to_cache = array_unique($tags_to_cache);
1499
1500                                         $tags_str = db_escape_string(join(",", $tags_to_cache));
1501
1502                                         db_query($link, "UPDATE ttrss_user_entries
1503                                                 SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
1504                                                 AND owner_uid = $owner_uid");
1505
1506                                         db_query($link, "COMMIT");
1507                                 }
1508
1509                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1510                                         _debug("update_rss_feed: article processed");
1511                                 }
1512                         }
1513
1514                         if (!$last_updated) {
1515                                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1516                                         _debug("update_rss_feed: new feed, catching it up...");
1517                                 }
1518                                 catchup_feed($link, $feed, false, $owner_uid);
1519                         }
1520
1521                         purge_feed($link, $feed, 0);
1522
1523                         db_query($link, "UPDATE ttrss_feeds
1524                                 SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
1525
1526 //                      db_query($link, "COMMIT");
1527
1528                 } else {
1529
1530                         if ($use_simplepie) {
1531                                 $error_msg = mb_substr($rss->error(), 0, 250);
1532                         } else {
1533                                 $error_msg = mb_substr(magpie_error(), 0, 250);
1534                         }
1535
1536                         if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1537                                 _debug("update_rss_feed: error fetching feed: $error_msg");
1538                         }
1539
1540                         $error_msg = db_escape_string($error_msg);
1541
1542                         db_query($link,
1543                                 "UPDATE ttrss_feeds SET last_error = '$error_msg',
1544                                         last_updated = NOW() WHERE id = '$feed'");
1545                 }
1546
1547                 if ($use_simplepie) {
1548                         unset($rss);
1549                 }
1550
1551                 if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
1552                         _debug("update_rss_feed: done");
1553                 }
1554
1555         }
1556
1557         function print_select($id, $default, $values, $attributes = "") {
1558                 print "<select name=\"$id\" id=\"$id\" $attributes>";
1559                 foreach ($values as $v) {
1560                         if ($v == $default)
1561                                 $sel = "selected=\"1\"";
1562                          else
1563                                 $sel = "";
1564
1565                         print "<option value=\"$v\" $sel>$v</option>";
1566                 }
1567                 print "</select>";
1568         }
1569
1570         function print_select_hash($id, $default, $values, $attributes = "") {
1571                 print "<select name=\"$id\" id='$id' $attributes>";
1572                 foreach (array_keys($values) as $v) {
1573                         if ($v == $default)
1574                                 $sel = 'selected="selected"';
1575                          else
1576                                 $sel = "";
1577
1578                         print "<option $sel value=\"$v\">".$values[$v]."</option>";
1579                 }
1580
1581                 print "</select>";
1582         }
1583
1584         function get_article_filters($filters, $title, $content, $link, $timestamp, $author, $tags) {
1585                 $matches = array();
1586
1587                 if ($filters["title"]) {
1588                         foreach ($filters["title"] as $filter) {
1589                                 $reg_exp = $filter["reg_exp"];
1590                                 $inverse = $filter["inverse"];
1591                                 if ((!$inverse && @preg_match("/$reg_exp/i", $title)) ||
1592                                                 ($inverse && !@preg_match("/$reg_exp/i", $title))) {
1593
1594                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1595                                 }
1596                         }
1597                 }
1598
1599                 if ($filters["content"]) {
1600                         foreach ($filters["content"] as $filter) {
1601                                 $reg_exp = $filter["reg_exp"];
1602                                 $inverse = $filter["inverse"];
1603
1604                                 if ((!$inverse && @preg_match("/$reg_exp/i", $content)) ||
1605                                                 ($inverse && !@preg_match("/$reg_exp/i", $content))) {
1606
1607                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1608                                 }
1609                         }
1610                 }
1611
1612                 if ($filters["both"]) {
1613                         foreach ($filters["both"] as $filter) {
1614                                 $reg_exp = $filter["reg_exp"];
1615                                 $inverse = $filter["inverse"];
1616
1617                                 if ($inverse) {
1618                                         if (!@preg_match("/$reg_exp/i", $title) && !preg_match("/$reg_exp/i", $content)) {
1619                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1620                                         }
1621                                 } else {
1622                                         if (@preg_match("/$reg_exp/i", $title) || preg_match("/$reg_exp/i", $content)) {
1623                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1624                                         }
1625                                 }
1626                         }
1627                 }
1628
1629                 if ($filters["link"]) {
1630                         $reg_exp = $filter["reg_exp"];
1631                         foreach ($filters["link"] as $filter) {
1632                                 $reg_exp = $filter["reg_exp"];
1633                                 $inverse = $filter["inverse"];
1634
1635                                 if ((!$inverse && @preg_match("/$reg_exp/i", $link)) ||
1636                                                 ($inverse && !@preg_match("/$reg_exp/i", $link))) {
1637
1638                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1639                                 }
1640                         }
1641                 }
1642
1643                 if ($filters["date"]) {
1644                         $reg_exp = $filter["reg_exp"];
1645                         foreach ($filters["date"] as $filter) {
1646                                 $date_modifier = $filter["filter_param"];
1647                                 $inverse = $filter["inverse"];
1648                                 $check_timestamp = strtotime($filter["reg_exp"]);
1649
1650                                 # no-op when timestamp doesn't parse to prevent misfires
1651
1652                                 if ($check_timestamp) {
1653                                         $match_ok = false;
1654
1655                                         if ($date_modifier == "before" && $timestamp < $check_timestamp ||
1656                                                 $date_modifier == "after" && $timestamp > $check_timestamp) {
1657                                                         $match_ok = true;
1658                                         }
1659
1660                                         if ($inverse) $match_ok = !$match_ok;
1661
1662                                         if ($match_ok) {
1663                                                 array_push($matches, array($filter["action"], $filter["action_param"]));
1664                                         }
1665                                 }
1666                         }
1667                 }
1668
1669                 if ($filters["author"]) {
1670                         foreach ($filters["author"] as $filter) {
1671                                 $reg_exp = $filter["reg_exp"];
1672                                 $inverse = $filter["inverse"];
1673                                 if ((!$inverse && @preg_match("/$reg_exp/i", $author)) ||
1674                                                 ($inverse && !@preg_match("/$reg_exp/i", $author))) {
1675
1676                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1677                                 }
1678                         }
1679                 }
1680
1681                 if ($filters["tag"]) {
1682
1683                         $tag_string = join(",", $tags);
1684
1685                         foreach ($filters["tag"] as $filter) {
1686                                 $reg_exp = $filter["reg_exp"];
1687                                 $inverse = $filter["inverse"];
1688
1689                                 if ((!$inverse && @preg_match("/$reg_exp/i", $tag_string)) ||
1690                                                 ($inverse && !@preg_match("/$reg_exp/i", $tag_string))) {
1691
1692                                         array_push($matches, array($filter["action"], $filter["action_param"]));
1693                                 }
1694                         }
1695                 }
1696
1697
1698                 return $matches;
1699         }
1700
1701         function find_article_filter($filters, $filter_name) {
1702                 foreach ($filters as $f) {
1703                         if ($f[0] == $filter_name) {
1704                                 return $f;
1705                         };
1706                 }
1707                 return false;
1708         }
1709
1710         function calculate_article_score($filters) {
1711                 $score = 0;
1712
1713                 foreach ($filters as $f) {
1714                         if ($f[0] == "score") {
1715                                 $score += $f[1];
1716                         };
1717                 }
1718                 return $score;
1719         }
1720
1721         function assign_article_to_labels($link, $id, $filters, $owner_uid) {
1722                 foreach ($filters as $f) {
1723                         if ($f[0] == "label") {
1724                                 label_add_article($link, $id, $f[1], $owner_uid);
1725                         };
1726                 }
1727         }
1728
1729         function getmicrotime() {
1730                 list($usec, $sec) = explode(" ",microtime());
1731                 return ((float)$usec + (float)$sec);
1732         }
1733
1734         function print_radio($id, $default, $true_is, $values, $attributes = "") {
1735                 foreach ($values as $v) {
1736
1737                         if ($v == $default)
1738                                 $sel = "checked";
1739                          else
1740                                 $sel = "";
1741
1742                         if ($v == $true_is) {
1743                                 $sel .= " value=\"1\"";
1744                         } else {
1745                                 $sel .= " value=\"0\"";
1746                         }
1747
1748                         print "<input class=\"noborder\" dojoType=\"dijit.form.RadioButton\"
1749                                 type=\"radio\" $sel $attributes name=\"$id\">&nbsp;$v&nbsp;";
1750
1751                 }
1752         }
1753
1754         function initialize_user_prefs($link, $uid, $profile = false) {
1755
1756                 $uid = db_escape_string($uid);
1757
1758                 if (!$profile) {
1759                         $profile = "NULL";
1760                         $profile_qpart = "AND profile IS NULL";
1761                 } else {
1762                         $profile_qpart = "AND profile = '$profile'";
1763                 }
1764
1765                 if (get_schema_version($link) < 63) $profile_qpart = "";
1766
1767                 db_query($link, "BEGIN");
1768
1769                 $result = db_query($link, "SELECT pref_name,def_value FROM ttrss_prefs");
1770
1771                 $u_result = db_query($link, "SELECT pref_name
1772                         FROM ttrss_user_prefs WHERE owner_uid = '$uid' $profile_qpart");
1773
1774                 $active_prefs = array();
1775
1776                 while ($line = db_fetch_assoc($u_result)) {
1777                         array_push($active_prefs, $line["pref_name"]);
1778                 }
1779
1780                 while ($line = db_fetch_assoc($result)) {
1781                         if (array_search($line["pref_name"], $active_prefs) === FALSE) {
1782 //                              print "adding " . $line["pref_name"] . "<br>";
1783
1784                                 if (get_schema_version($link) < 63) {
1785                                         db_query($link, "INSERT INTO ttrss_user_prefs
1786                                                 (owner_uid,pref_name,value) VALUES
1787                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."')");
1788
1789                                 } else {
1790                                         db_query($link, "INSERT INTO ttrss_user_prefs
1791                                                 (owner_uid,pref_name,value, profile) VALUES
1792                                                 ('$uid', '".$line["pref_name"]."','".$line["def_value"]."', $profile)");
1793                                 }
1794
1795                         }
1796                 }
1797
1798                 db_query($link, "COMMIT");
1799
1800         }
1801
1802         function lookup_user_id($link, $user) {
1803
1804                 $result = db_query($link, "SELECT id FROM ttrss_users WHERE
1805                         login = '$login'");
1806
1807                 if (db_num_rows($result) == 1) {
1808                         return db_fetch_result($result, 0, "id");
1809                 } else {
1810                         return false;
1811                 }
1812         }
1813
1814         function http_authenticate_user($link) {
1815
1816 //              error_log("http_authenticate_user: ".$_SERVER["PHP_AUTH_USER"]."\n", 3, '/tmp/tt-rss.log');
1817
1818                 if (!$_SERVER["PHP_AUTH_USER"]) {
1819
1820                         header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1821                         header('HTTP/1.0 401 Unauthorized');
1822                         exit;
1823
1824                 } else {
1825                         $auth_result = authenticate_user($link,
1826                                 $_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"]);
1827
1828                         if (!$auth_result) {
1829                                 header('WWW-Authenticate: Basic realm="Tiny Tiny RSS RSSGen"');
1830                                 header('HTTP/1.0 401 Unauthorized');
1831                                 exit;
1832                         }
1833                 }
1834
1835                 return true;
1836         }
1837
1838         function get_ssl_certificate_id() {
1839                 if ($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"]) {
1840                         return sha1($_SERVER["REDIRECT_SSL_CLIENT_M_SERIAL"] .
1841                                 $_SERVER["REDIRECT_SSL_CLIENT_V_START"] .
1842                                 $_SERVER["REDIRECT_SSL_CLIENT_V_END"] .
1843                                 $_SERVER["REDIRECT_SSL_CLIENT_S_DN"]);
1844                 }
1845                 return "";
1846         }
1847
1848         function get_login_by_ssl_certificate($link) {
1849
1850                 $cert_serial = db_escape_string(get_ssl_certificate_id());
1851
1852                 if ($cert_serial) {
1853                         $result = db_query($link, "SELECT login FROM ttrss_user_prefs, ttrss_users
1854                                 WHERE pref_name = 'SSL_CERT_SERIAL' AND value = '$cert_serial' AND
1855                                 owner_uid = ttrss_users.id");
1856
1857                         if (db_num_rows($result) != 0) {
1858                                 return db_escape_string(db_fetch_result($result, 0, "login"));
1859                         }
1860                 }
1861
1862                 return "";
1863         }
1864
1865         function get_remote_user($link) {
1866
1867                 if (defined('ALLOW_REMOTE_USER_AUTH') && ALLOW_REMOTE_USER_AUTH) {
1868                         return db_escape_string($_SERVER["REMOTE_USER"]);
1869                 }
1870
1871                 return db_escape_string(get_login_by_ssl_certificate($link));
1872         }
1873
1874         function get_remote_fakepass($link) {
1875                 if (get_remote_user($link))
1876                         return "******";
1877                 else
1878                         return "";
1879         }
1880
1881         function authenticate_user($link, $login, $password, $force_auth = false) {
1882
1883                 if (!SINGLE_USER_MODE) {
1884
1885                         $pwd_hash1 = encrypt_password($password);
1886                         $pwd_hash2 = encrypt_password($password, $login);
1887                         $login = db_escape_string($login);
1888
1889                         $remote_user = get_remote_user($link);
1890
1891                         if ($remote_user && $remote_user == $login && $login != "admin") {
1892
1893                                 $login = $remote_user;
1894
1895                                 $query = "SELECT id,login,access_level,pwd_hash
1896                     FROM ttrss_users WHERE
1897                                         login = '$login'";
1898
1899                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER
1900                                                 && $_SERVER["REMOTE_USER"]) {
1901                                         $result = db_query($link, $query);
1902
1903                                         // First login ?
1904                                         if (db_num_rows($result) == 0) {
1905                                                 $query = "INSERT INTO ttrss_users
1906                                                                 (login,access_level,last_login,created)
1907                                                                 VALUES ('$login', 0, null, NOW())";
1908                                                 db_query($link, $query);
1909                                         }
1910                                 }
1911
1912                         } else {
1913                                 $query = "SELECT id,login,access_level,pwd_hash
1914                     FROM ttrss_users WHERE
1915                                         login = '$login' AND (pwd_hash = '$pwd_hash1' OR
1916                                                 pwd_hash = '$pwd_hash2')";
1917                         }
1918
1919                         $result = db_query($link, $query);
1920
1921                         if (db_num_rows($result) == 1) {
1922                                 $_SESSION["uid"] = db_fetch_result($result, 0, "id");
1923                                 $_SESSION["name"] = db_fetch_result($result, 0, "login");
1924                                 $_SESSION["access_level"] = db_fetch_result($result, 0, "access_level");
1925
1926                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
1927                                         $_SESSION["uid"]);
1928
1929
1930                                 // LemonLDAP can send user informations via HTTP HEADER
1931                                 if (defined('AUTO_CREATE_USER') && AUTO_CREATE_USER){
1932                                         // update user name
1933                                         if ($_SERVER['HTTP_USER_NAME']){
1934                                                 $fullname = db_escape_string($_SERVER['HTTP_USER_NAME']);
1935                                                 db_query($link, "UPDATE ttrss_users SET full_name = '$fullname' WHERE id = " .
1936                                                         $_SESSION["uid"]);
1937                                         }
1938                                         // update user mail
1939                                         if ($_SERVER['HTTP_USER_MAIL']){
1940                                                 $email = db_escape_string($_SERVER['HTTP_USER_MAIL']);
1941                                                 db_query($link, "UPDATE ttrss_users SET email = '$email' WHERE id = " .
1942                                                         $_SESSION["uid"]);
1943                                         }
1944                                 }
1945
1946                                 $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1947                                 $_SESSION["pwd_hash"] = db_fetch_result($result, 0, "pwd_hash");
1948
1949                                 $_SESSION["last_version_check"] = time();
1950
1951                                 initialize_user_prefs($link, $_SESSION["uid"]);
1952
1953                                 return true;
1954                         }
1955
1956                         return false;
1957
1958                 } else {
1959
1960                         $_SESSION["uid"] = 1;
1961                         $_SESSION["name"] = "admin";
1962
1963                         $_SESSION["ip_address"] = $_SERVER["REMOTE_ADDR"];
1964
1965                         initialize_user_prefs($link, $_SESSION["uid"]);
1966
1967                         return true;
1968                 }
1969         }
1970
1971         function make_password($length = 8) {
1972
1973                 $password = "";
1974                 $possible = "0123456789abcdfghjkmnpqrstvwxyzABCDFGHJKMNPQRSTVWXYZ";
1975
1976         $i = 0;
1977
1978                 while ($i < $length) {
1979                         $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);
1980
1981                         if (!strstr($password, $char)) {
1982                                 $password .= $char;
1983                                 $i++;
1984                         }
1985                 }
1986                 return $password;
1987         }
1988
1989         // this is called after user is created to initialize default feeds, labels
1990         // or whatever else
1991
1992         // user preferences are checked on every login, not here
1993
1994         function initialize_user($link, $uid) {
1995
1996                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
1997                         values ('$uid', 'Tiny Tiny RSS: New Releases',
1998                         'http://tt-rss.org/releases.rss')");
1999
2000                 db_query($link, "insert into ttrss_feeds (owner_uid,title,feed_url)
2001                         values ('$uid', 'Tiny Tiny RSS: Forum',
2002                                 'http://tt-rss.org/forum/rss.php')");
2003         }
2004
2005         function logout_user() {
2006                 session_destroy();
2007                 if (isset($_COOKIE[session_name()])) {
2008                    setcookie(session_name(), '', time()-42000, '/');
2009                 }
2010         }
2011
2012         function get_script_urlpath() {
2013                 return preg_replace('/\/[^\/]*$/', "", $_SERVER["REQUEST_URI"]);
2014         }
2015
2016         function validate_session($link) {
2017                 if (SINGLE_USER_MODE) return true;
2018
2019                 $check_ip = $_SESSION['ip_address'];
2020
2021                 switch (SESSION_CHECK_ADDRESS) {
2022                 case 0:
2023                         $check_ip = '';
2024                         break;
2025                 case 1:
2026                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
2027                         break;
2028                 case 2:
2029                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.'));
2030                         $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1);
2031                         break;
2032                 };
2033
2034                 if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) {
2035                         $_SESSION["login_error_msg"] =
2036                                 __("Session failed to validate (incorrect IP)");
2037                         return false;
2038                 }
2039
2040                 if ($_SESSION["ref_schema_version"] != get_schema_version($link, true))
2041                         return false;
2042
2043                 if ($_SESSION["uid"]) {
2044
2045                         $result = db_query($link,
2046                                 "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'");
2047
2048                         $pwd_hash = db_fetch_result($result, 0, "pwd_hash");
2049
2050                         if ($pwd_hash != $_SESSION["pwd_hash"]) {
2051                                 return false;
2052                         }
2053                 }
2054
2055 /*              if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) {
2056
2057                         //print_r($_SESSION);
2058
2059                         if (time() > $_SESSION["cookie_lifetime"]) {
2060                                 return false;
2061                         }
2062                 } */
2063
2064                 return true;
2065         }
2066
2067         function login_sequence($link, $mobile = false) {
2068                 if (!SINGLE_USER_MODE) {
2069
2070                         $login_action = $_POST["login_action"];
2071
2072                         # try to authenticate user if called from login form
2073                         if ($login_action == "do_login") {
2074                                 $login = $_POST["login"];
2075                                 $password = $_POST["password"];
2076                                 $remember_me = $_POST["remember_me"];
2077
2078                                 if (authenticate_user($link, $login, $password)) {
2079                                         $_POST["password"] = "";
2080
2081                                         $_SESSION["language"] = $_POST["language"];
2082                                         $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2083                                         $_SESSION["bw_limit"] = !!$_POST["bw_limit"];
2084
2085                                         if ($_POST["profile"]) {
2086
2087                                                 $profile = db_escape_string($_POST["profile"]);
2088
2089                                                 $result = db_query($link, "SELECT id FROM ttrss_settings_profiles
2090                                                         WHERE id = '$profile' AND owner_uid = " . $_SESSION["uid"]);
2091
2092                                                 if (db_num_rows($result) != 0) {
2093                                                         $_SESSION["profile"] = $profile;
2094                                                         $_SESSION["prefs_cache"] = array();
2095                                                 }
2096                                         }
2097
2098                                         if ($_REQUEST['return']) {
2099                                                 header("Location: " . $_REQUEST['return']);
2100                                         } else {
2101                                                 header("Location: " . $_SERVER["REQUEST_URI"]);
2102                                         }
2103
2104                                         exit;
2105
2106                                         return;
2107                                 } else {
2108                                         $_SESSION["login_error_msg"] = __("Incorrect username or password");
2109                                 }
2110                         }
2111
2112                         if (!$_SESSION["uid"] || !validate_session($link)) {
2113
2114                                 if (get_remote_user($link) && AUTO_LOGIN) {
2115                                     authenticate_user($link, get_remote_user($link), null);
2116                                     $_SESSION["ref_schema_version"] = get_schema_version($link, true);
2117                                 } else {
2118                                     render_login_form($link, $mobile);
2119                                     //header("Location: login.php");
2120                                     exit;
2121                                 }
2122                         } else {
2123                                 /* bump login timestamp */
2124                                 db_query($link, "UPDATE ttrss_users SET last_login = NOW() WHERE id = " .
2125                                         $_SESSION["uid"]);
2126
2127                                 if ($_SESSION["language"] && SESSION_COOKIE_LIFETIME > 0) {
2128                                         setcookie("ttrss_lang", $_SESSION["language"],
2129                                                 time() + SESSION_COOKIE_LIFETIME);
2130                                 }
2131                         }
2132
2133                 } else {
2134                         return authenticate_user($link, "admin", null);
2135                 }
2136         }
2137
2138         function truncate_string($str, $max_len, $suffix = '&hellip;') {
2139                 if (mb_strlen($str, "utf-8") > $max_len - 3) {
2140                         return mb_substr($str, 0, $max_len, "utf-8") . $suffix;
2141                 } else {
2142                         return $str;
2143                 }
2144         }
2145
2146         function theme_image($link, $filename) {
2147                 if ($link) {
2148                         $theme_path = get_user_theme_path($link);
2149
2150                         if ($theme_path && is_file($theme_path.$filename)) {
2151                                 return $theme_path.$filename;
2152                         } else {
2153                                 return $filename;
2154                         }
2155                 } else {
2156                         return $filename;
2157                 }
2158         }
2159
2160         function get_user_theme($link) {
2161
2162                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2163                         $theme_name = get_pref($link, "_THEME_ID");
2164                         if (is_dir("themes/$theme_name")) {
2165                                 return $theme_name;
2166                         } else {
2167                                 return '';
2168                         }
2169                 } else {
2170                         return '';
2171                 }
2172
2173         }
2174
2175         function get_user_theme_path($link) {
2176                 $theme_path = '';
2177
2178                 if (get_schema_version($link) >= 63 && $_SESSION["uid"]) {
2179                         $theme_name = get_pref($link, "_THEME_ID");
2180
2181                         if ($theme_name && is_dir("themes/$theme_name")) {
2182                                 $theme_path = "themes/$theme_name/";
2183                         } else {
2184                                 $theme_name = '';
2185                         }
2186                 } else {
2187                         $theme_path = '';
2188                 }
2189
2190                 if ($theme_path) {
2191                         if (is_file("$theme_path/theme.ini")) {
2192                                 $ini = parse_ini_file("$theme_path/theme.ini", true);
2193                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED) {
2194                                         return $theme_path;
2195                                 }
2196                         }
2197                 }
2198                 return '';
2199         }
2200
2201         function get_user_theme_options($link) {
2202                 $t = get_user_theme_path($link);
2203
2204                 if ($t) {
2205                         if (is_file("$t/theme.ini")) {
2206                                 $ini = parse_ini_file("$t/theme.ini", true);
2207                                 if ($ini['theme']['version']) {
2208                                         return $ini['theme']['options'];
2209                                 }
2210                         }
2211                 }
2212                 return '';
2213         }
2214
2215         function print_theme_includes($link) {
2216
2217                 $t = get_user_theme_path($link);
2218                 $time = time();
2219
2220                 if ($t) {
2221                         print "<link rel=\"stylesheet\" type=\"text/css\"
2222                                 href=\"$t/theme.css?$time \">";
2223                         if (file_exists("$t/theme.js")) {
2224                                 print "<script type=\"text/javascript\" src=\"$t/theme.js?$time\">
2225                                         </script>";
2226                         }
2227                 }
2228         }
2229
2230         function get_all_themes() {
2231                 $themes = glob("themes/*");
2232
2233                 asort($themes);
2234
2235                 $rv = array();
2236
2237                 foreach ($themes as $t) {
2238                         if (is_file("$t/theme.ini")) {
2239                                 $ini = parse_ini_file("$t/theme.ini", true);
2240                                 if ($ini['theme']['version'] >= THEME_VERSION_REQUIRED &&
2241                                                         !$ini['theme']['disabled']) {
2242                                         $entry = array();
2243                                         $entry["path"] = $t;
2244                                         $entry["base"] = basename($t);
2245                                         $entry["name"] = $ini['theme']['name'];
2246                                         $entry["version"] = $ini['theme']['version'];
2247                                         $entry["author"] = $ini['theme']['author'];
2248                                         $entry["options"] = $ini['theme']['options'];
2249                                         array_push($rv, $entry);
2250                                 }
2251                         }
2252                 }
2253
2254                 return $rv;
2255         }
2256
2257         function convert_timestamp($timestamp, $source_tz, $dest_tz) {
2258
2259                 try {
2260                         $source_tz = new DateTimeZone($source_tz);
2261                 } catch (Exception $e) {
2262                         $source_tz = new DateTimeZone('UTC');
2263                 }
2264
2265                 try {
2266                         $dest_tz = new DateTimeZone($dest_tz);
2267                 } catch (Exception $e) {
2268                         $dest_tz = new DateTimeZone('UTC');
2269                 }
2270
2271                 $dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
2272                 return $dt->format('U') + $dest_tz->getOffset($dt);
2273         }
2274
2275         function make_local_datetime($link, $timestamp, $long, $owner_uid = false,
2276                                         $no_smart_dt = false) {
2277
2278                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2279                 if (!$timestamp) $timestamp = '1970-01-01 0:00';
2280
2281                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $owner_uid);
2282
2283                 try {
2284                         $user_tz = new DateTimeZone($user_tz_string);
2285                 } catch (Exception $e) {
2286                         $user_tz = new DateTimeZone('UTC');
2287                 }
2288
2289                 # We store date in UTC internally
2290                 $dt = new DateTime($timestamp, new DateTimeZone('UTC'));
2291                 $user_timestamp = $dt->format('U') + $user_tz->getOffset($dt);
2292
2293                 if (!$no_smart_dt) {
2294                         return smart_date_time($link, $user_timestamp,
2295                                 $user_tz->getOffset($dt), $owner_uid);
2296                 } else {
2297                         if ($long)
2298                                 $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2299                         else
2300                                 $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2301
2302                         return date($format, $user_timestamp);
2303                 }
2304         }
2305
2306         function smart_date_time($link, $timestamp, $tz_offset = 0, $owner_uid = false) {
2307                 if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2308
2309                 if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
2310                         return date("G:i", $timestamp);
2311                 } else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
2312                         $format = get_pref($link, 'SHORT_DATE_FORMAT', $owner_uid);
2313                         return date($format, $timestamp);
2314                 } else {
2315                         $format = get_pref($link, 'LONG_DATE_FORMAT', $owner_uid);
2316                         return date($format, $timestamp);
2317                 }
2318         }
2319
2320         function smart_date($timestamp) {
2321                 if (date("Y.m.d", $timestamp) == date("Y.m.d")) {
2322                         return "Today";
2323                 } else if (date("Y", $timestamp) == date("Y")) {
2324                         return date("D m", $timestamp);
2325                 } else {
2326                         return date("Y/m/d", $timestamp);
2327                 }
2328         }
2329
2330         function sql_bool_to_string($s) {
2331                 if ($s == "t" || $s == "1") {
2332                         return "true";
2333                 } else {
2334                         return "false";
2335                 }
2336         }
2337
2338         function sql_bool_to_bool($s) {
2339                 if ($s == "t" || $s == "1") {
2340                         return true;
2341                 } else {
2342                         return false;
2343                 }
2344         }
2345
2346         function bool_to_sql_bool($s) {
2347                 if ($s) {
2348                         return "true";
2349                 } else {
2350                         return "false";
2351                 }
2352         }
2353
2354         function toggleEvenOdd($a) {
2355                 if ($a == "even")
2356                         return "odd";
2357                 else
2358                         return "even";
2359         }
2360
2361         function get_schema_version($link, $nocache = false) {
2362                 if (!$_SESSION["schema_version"] || $nocache) {
2363                         $result = db_query($link, "SELECT schema_version FROM ttrss_version");
2364                         $version = db_fetch_result($result, 0, "schema_version");
2365                         $_SESSION["schema_version"] = $version;
2366                         return $version;
2367                 } else {
2368                         return $_SESSION["schema_version"];
2369                 }
2370         }
2371
2372         function sanity_check($link) {
2373
2374                 global $ERRORS;
2375
2376                 $error_code = 0;
2377                 $schema_version = get_schema_version($link);
2378
2379                 if ($schema_version != SCHEMA_VERSION) {
2380                         $error_code = 5;
2381                 }
2382
2383                 if (DB_TYPE == "mysql") {
2384                         $result = db_query($link, "SELECT true", false);
2385                         if (db_num_rows($result) != 1) {
2386                                 $error_code = 10;
2387                         }
2388                 }
2389
2390                 if (db_escape_string("testTEST") != "testTEST") {
2391                         $error_code = 12;
2392                 }
2393
2394                 return array("code" => $error_code, "message" => $ERRORS[$error_code]);
2395         }
2396
2397         function file_is_locked($filename) {
2398                 if (function_exists('flock')) {
2399                         $fp = @fopen(LOCK_DIRECTORY . "/$filename", "r");
2400                         if ($fp) {
2401                                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2402                                         flock($fp, LOCK_UN);
2403                                         fclose($fp);
2404                                         return false;
2405                                 }
2406                                 fclose($fp);
2407                                 return true;
2408                         } else {
2409                                 return false;
2410                         }
2411                 }
2412                 return true; // consider the file always locked and skip the test
2413         }
2414
2415         function make_lockfile($filename) {
2416                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2417
2418                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2419                         if (function_exists('posix_getpid')) {
2420                                 fwrite($fp, posix_getpid() . "\n");
2421                         }
2422                         return $fp;
2423                 } else {
2424                         return false;
2425                 }
2426         }
2427
2428         function make_stampfile($filename) {
2429                 $fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
2430
2431                 if (flock($fp, LOCK_EX | LOCK_NB)) {
2432                         fwrite($fp, time() . "\n");
2433                         flock($fp, LOCK_UN);
2434                         fclose($fp);
2435                         return true;
2436                 } else {
2437                         return false;
2438                 }
2439         }
2440
2441         function sql_random_function() {
2442                 if (DB_TYPE == "mysql") {
2443                         return "RAND()";
2444                 } else {
2445                         return "RANDOM()";
2446                 }
2447         }
2448
2449         function catchup_feed($link, $feed, $cat_view, $owner_uid = false) {
2450
2451                         if (!$owner_uid) $owner_uid = $_SESSION['uid'];
2452
2453                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
2454
2455                                 if ($cat_view) {
2456
2457                                         if ($feed >= 0) {
2458
2459                                                 if ($feed > 0) {
2460                                                         $cat_qpart = "cat_id = '$feed'";
2461                                                 } else {
2462                                                         $cat_qpart = "cat_id IS NULL";
2463                                                 }
2464
2465                                                 $tmp_result = db_query($link, "SELECT id
2466                                                         FROM ttrss_feeds WHERE $cat_qpart AND owner_uid = $owner_uid");
2467
2468                                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
2469
2470                                                         $tmp_feed = $tmp_line["id"];
2471
2472                                                         db_query($link, "UPDATE ttrss_user_entries
2473                                                                 SET unread = false,last_read = NOW()
2474                                                                 WHERE feed_id = '$tmp_feed' AND owner_uid = $owner_uid");
2475                                                 }
2476                                         } else if ($feed == -2) {
2477
2478
2479                                                 db_query($link, "UPDATE ttrss_user_entries
2480                                                         SET unread = false,last_read = NOW() WHERE (SELECT COUNT(*)
2481                                                                 FROM ttrss_user_labels2 WHERE article_id = ref_id) > 0
2482                                                         AND unread = true AND owner_uid = $owner_uid");
2483                                         }
2484
2485                                 } else if ($feed > 0) {
2486
2487                                         db_query($link, "UPDATE ttrss_user_entries
2488                                                         SET unread = false,last_read = NOW()
2489                                                         WHERE feed_id = '$feed' AND owner_uid = $owner_uid");
2490
2491                                 } else if ($feed < 0 && $feed > -10) { // special, like starred
2492
2493                                         if ($feed == -1) {
2494                                                 db_query($link, "UPDATE ttrss_user_entries
2495                                                         SET unread = false,last_read = NOW()
2496                                                         WHERE marked = true AND owner_uid = $owner_uid");
2497                                         }
2498
2499                                         if ($feed == -2) {
2500                                                 db_query($link, "UPDATE ttrss_user_entries
2501                                                         SET unread = false,last_read = NOW()
2502                                                         WHERE published = true AND owner_uid = $owner_uid");
2503                                         }
2504
2505                                         if ($feed == -3) {
2506
2507                                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE");
2508
2509                                                 if (DB_TYPE == "pgsql") {
2510                                                         $match_part = "updated > NOW() - INTERVAL '$intl hour' ";
2511                                                 } else {
2512                                                         $match_part = "updated > DATE_SUB(NOW(),
2513                                                                 INTERVAL $intl HOUR) ";
2514                                                 }
2515
2516                                                 $result = db_query($link, "SELECT id FROM ttrss_entries,
2517                                                         ttrss_user_entries WHERE $match_part AND
2518                                                         unread = true AND
2519                                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
2520                                                         owner_uid = $owner_uid");
2521
2522                                                 $affected_ids = array();
2523
2524                                                 while ($line = db_fetch_assoc($result)) {
2525                                                         array_push($affected_ids, $line["id"]);
2526                                                 }
2527
2528                                                 catchupArticlesById($link, $affected_ids, 0);
2529                                         }
2530
2531                                         if ($feed == -4) {
2532                                                 db_query($link, "UPDATE ttrss_user_entries
2533                                                         SET unread = false,last_read = NOW()
2534                                                         WHERE owner_uid = $owner_uid");
2535                                         }
2536
2537                                 } else if ($feed < -10) { // label
2538
2539                                         $label_id = -$feed - 11;
2540
2541                                         db_query($link, "UPDATE ttrss_user_entries, ttrss_user_labels2
2542                                                 SET unread = false, last_read = NOW()
2543                                                         WHERE label_id = '$label_id' AND unread = true
2544                                                         AND owner_uid = '$owner_uid' AND ref_id = article_id");
2545
2546                                 }
2547
2548                                 ccache_update($link, $feed, $owner_uid, $cat_view);
2549
2550                         } else { // tag
2551                                 db_query($link, "BEGIN");
2552
2553                                 $tag_name = db_escape_string($feed);
2554
2555                                 $result = db_query($link, "SELECT post_int_id FROM ttrss_tags
2556                                         WHERE tag_name = '$tag_name' AND owner_uid = $owner_uid");
2557
2558                                 while ($line = db_fetch_assoc($result)) {
2559                                         db_query($link, "UPDATE ttrss_user_entries SET
2560                                                 unread = false, last_read = NOW()
2561                                                 WHERE int_id = " . $line["post_int_id"]);
2562                                 }
2563                                 db_query($link, "COMMIT");
2564                         }
2565         }
2566
2567         function getAllCounters($link, $omode = "flc", $active_feed = false) {
2568
2569                 if (!$omode) $omode = "flc";
2570
2571                 $data = getGlobalCounters($link);
2572
2573                 $data = array_merge($data, getVirtCounters($link));
2574
2575                 if (strchr($omode, "l")) $data = array_merge($data, getLabelCounters($link));
2576                 if (strchr($omode, "f")) $data = array_merge($data, getFeedCounters($link, $active_feed));
2577                 if (strchr($omode, "t")) $data = array_merge($data, getTagCounters($link));
2578                 if (strchr($omode, "c")) {
2579                         if (get_pref($link, 'ENABLE_FEED_CATS')) {
2580                                 $data = array_merge($data, getCategoryCounters($link));
2581                         }
2582                 }
2583
2584                 return $data;
2585         }
2586
2587         function getCategoryCounters($link) {
2588                 $ret_arr = array();
2589
2590                 /* Labels category */
2591
2592                 $cv = array("id" => -2, "kind" => "cat",
2593                         "counter" => getCategoryUnread($link, -2));
2594
2595                 array_push($ret_arr, $cv);
2596
2597                 $age_qpart = getMaxAgeSubquery();
2598
2599                 $result = db_query($link, "SELECT id AS cat_id, value AS unread
2600                         FROM ttrss_feed_categories, ttrss_cat_counters_cache
2601                         WHERE ttrss_cat_counters_cache.feed_id = id AND
2602                         ttrss_feed_categories.owner_uid = " . $_SESSION["uid"]);
2603
2604                 while ($line = db_fetch_assoc($result)) {
2605                         $line["cat_id"] = (int) $line["cat_id"];
2606
2607                         $cv = array("id" => $line["cat_id"], "kind" => "cat",
2608                                 "counter" => $line["unread"]);
2609
2610                         array_push($ret_arr, $cv);
2611                 }
2612
2613                 /* Special case: NULL category doesn't actually exist in the DB */
2614
2615                 $cv = array("id" => 0, "kind" => "cat",
2616                         "counter" => ccache_find($link, 0, $_SESSION["uid"], true));
2617
2618                 array_push($ret_arr, $cv);
2619
2620                 return $ret_arr;
2621         }
2622
2623         function getCategoryUnread($link, $cat, $owner_uid = false) {
2624
2625                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2626
2627                 if ($cat >= 0) {
2628
2629                         if ($cat != 0) {
2630                                 $cat_query = "cat_id = '$cat'";
2631                         } else {
2632                                 $cat_query = "cat_id IS NULL";
2633                         }
2634
2635                         $age_qpart = getMaxAgeSubquery();
2636
2637                         $result = db_query($link, "SELECT id FROM ttrss_feeds WHERE $cat_query
2638                                         AND owner_uid = " . $owner_uid);
2639
2640                         $cat_feeds = array();
2641                         while ($line = db_fetch_assoc($result)) {
2642                                 array_push($cat_feeds, "feed_id = " . $line["id"]);
2643                         }
2644
2645                         if (count($cat_feeds) == 0) return 0;
2646
2647                         $match_part = implode(" OR ", $cat_feeds);
2648
2649                         $result = db_query($link, "SELECT COUNT(int_id) AS unread
2650                                 FROM ttrss_user_entries,ttrss_entries
2651                                 WHERE   unread = true AND ($match_part) AND id = ref_id
2652                                 AND $age_qpart AND owner_uid = " . $owner_uid);
2653
2654                         $unread = 0;
2655
2656                         # this needs to be rewritten
2657                         while ($line = db_fetch_assoc($result)) {
2658                                 $unread += $line["unread"];
2659                         }
2660
2661                         return $unread;
2662                 } else if ($cat == -1) {
2663                         return getFeedUnread($link, -1) + getFeedUnread($link, -2) + getFeedUnread($link, -3) + getFeedUnread($link, 0);
2664                 } else if ($cat == -2) {
2665
2666                         $result = db_query($link, "
2667                                 SELECT COUNT(unread) AS unread FROM
2668                                         ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2669                                 WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2670                                         ttrss_labels2.owner_uid = '$owner_uid'
2671                                         AND unread = true AND feed_id = ttrss_feeds.id
2672                                         AND ttrss_user_entries.owner_uid = '$owner_uid'");
2673
2674                         $unread = db_fetch_result($result, 0, "unread");
2675
2676                         return $unread;
2677
2678                 }
2679         }
2680
2681         function getMaxAgeSubquery($days = COUNTERS_MAX_AGE) {
2682                 if (DB_TYPE == "pgsql") {
2683                         return "ttrss_entries.date_updated >
2684                                 NOW() - INTERVAL '$days days'";
2685                 } else {
2686                         return "ttrss_entries.date_updated >
2687                                 DATE_SUB(NOW(), INTERVAL $days DAY)";
2688                 }
2689         }
2690
2691         function getFeedUnread($link, $feed, $is_cat = false) {
2692                 return getFeedArticles($link, $feed, $is_cat, true, $_SESSION["uid"]);
2693         }
2694
2695         function getLabelUnread($link, $label_id, $owner_uid = false) {
2696                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2697
2698                 $result = db_query($link, "
2699                         SELECT COUNT(unread) AS unread FROM
2700                                 ttrss_user_entries, ttrss_labels2, ttrss_user_labels2, ttrss_feeds
2701                         WHERE label_id = ttrss_labels2.id AND article_id = ref_id AND
2702                                 ttrss_labels2.owner_uid = '$owner_uid' AND ttrss_labels2.id = '$label_id'
2703                                 AND unread = true AND feed_id = ttrss_feeds.id
2704                                 AND ttrss_user_entries.owner_uid = '$owner_uid'");
2705
2706                 if (db_num_rows($result) != 0) {
2707                         return db_fetch_result($result, 0, "unread");
2708                 } else {
2709                         return 0;
2710                 }
2711         }
2712
2713         function getFeedArticles($link, $feed, $is_cat = false, $unread_only = false,
2714                 $owner_uid = false) {
2715
2716                 $n_feed = (int) $feed;
2717
2718                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
2719
2720                 if ($unread_only) {
2721                         $unread_qpart = "unread = true";
2722                 } else {
2723                         $unread_qpart = "true";
2724                 }
2725
2726                 $age_qpart = getMaxAgeSubquery();
2727
2728                 if ($is_cat) {
2729                         return getCategoryUnread($link, $n_feed, $owner_uid);
2730                 } if ($feed != "0" && $n_feed == 0) {
2731
2732                         $feed = db_escape_string($feed);
2733
2734                         $result = db_query($link, "SELECT SUM((SELECT COUNT(int_id)
2735                                 FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2736                                         AND ref_id = id AND $age_qpart
2737                                         AND $unread_qpart)) AS count FROM ttrss_tags
2738                                 WHERE owner_uid = $owner_uid AND tag_name = '$feed'");
2739                         return db_fetch_result($result, 0, "count");
2740
2741                 } else if ($n_feed == -1) {
2742                         $match_part = "marked = true";
2743                 } else if ($n_feed == -2) {
2744                         $match_part = "published = true";
2745                 } else if ($n_feed == -3) {
2746                         $match_part = "unread = true AND score >= 0";
2747
2748                         $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
2749
2750                         if (DB_TYPE == "pgsql") {
2751                                 $match_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
2752                         } else {
2753                                 $match_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
2754                         }
2755                 } else if ($n_feed == -4) {
2756                         $match_part = "true";
2757                 } else if ($n_feed >= 0) {
2758
2759                         if ($n_feed != 0) {
2760                                 $match_part = "feed_id = '$n_feed'";
2761                         } else {
2762                                 $match_part = "feed_id IS NULL";
2763                         }
2764
2765                 } else if ($feed < -10) {
2766
2767                         $label_id = -$feed - 11;
2768
2769                         return getLabelUnread($link, $label_id, $owner_uid);
2770
2771                 }
2772
2773                 if ($match_part) {
2774
2775                         if ($n_feed != 0) {
2776                                 $from_qpart = "ttrss_user_entries,ttrss_feeds,ttrss_entries";
2777                                 $feeds_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
2778                         } else {
2779                                 $from_qpart = "ttrss_user_entries,ttrss_entries";
2780                                 $feeds_qpart = '';
2781                         }
2782
2783                         $query = "SELECT count(int_id) AS unread
2784                                 FROM $from_qpart WHERE
2785                                 ttrss_user_entries.ref_id = ttrss_entries.id AND
2786                                 $age_qpart AND
2787                                 $feeds_qpart
2788                                 $unread_qpart AND ($match_part) AND ttrss_user_entries.owner_uid = $owner_uid";
2789
2790                         $result = db_query($link, $query);
2791
2792                 } else {
2793
2794                         $result = db_query($link, "SELECT COUNT(post_int_id) AS unread
2795                                 FROM ttrss_tags,ttrss_user_entries,ttrss_entries
2796                                 WHERE tag_name = '$feed' AND post_int_id = int_id AND ref_id = ttrss_entries.id
2797                                 AND $unread_qpart AND $age_qpart AND
2798                                         ttrss_tags.owner_uid = " . $owner_uid);
2799                 }
2800
2801                 $unread = db_fetch_result($result, 0, "unread");
2802
2803                 return $unread;
2804         }
2805
2806         function getGlobalUnread($link, $user_id = false) {
2807
2808                 if (!$user_id) {
2809                         $user_id = $_SESSION["uid"];
2810                 }
2811
2812                 $result = db_query($link, "SELECT SUM(value) AS c_id FROM ttrss_counters_cache
2813                         WHERE owner_uid = '$user_id' AND feed_id > 0");
2814
2815                 $c_id = db_fetch_result($result, 0, "c_id");
2816
2817                 return $c_id;
2818         }
2819
2820         function getGlobalCounters($link, $global_unread = -1) {
2821                 $ret_arr = array();
2822
2823                 if ($global_unread == -1) {
2824                         $global_unread = getGlobalUnread($link);
2825                 }
2826
2827                 $cv = array("id" => "global-unread",
2828                         "counter" => $global_unread);
2829
2830                 array_push($ret_arr, $cv);
2831
2832                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2833                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2834
2835                 $subscribed_feeds = db_fetch_result($result, 0, "fn");
2836
2837                 $cv = array("id" => "subscribed-feeds",
2838                         "counter" => $subscribed_feeds);
2839
2840                 array_push($ret_arr, $cv);
2841
2842                 return $ret_arr;
2843         }
2844
2845         function getSubscribedFeeds($link) {
2846                 $result = db_query($link, "SELECT COUNT(id) AS fn FROM
2847                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
2848
2849                 return db_fetch_result($result, 0, "fn");
2850         }
2851
2852         function getTagCounters($link) {
2853
2854                 $ret_arr = array();
2855
2856                 $age_qpart = getMaxAgeSubquery();
2857
2858                 $result = db_query($link, "SELECT tag_name,SUM((SELECT COUNT(int_id)
2859                         FROM ttrss_user_entries,ttrss_entries WHERE int_id = post_int_id
2860                                 AND ref_id = id AND $age_qpart
2861                                 AND unread = true)) AS count FROM ttrss_tags
2862                                 WHERE owner_uid = ".$_SESSION['uid']." GROUP BY tag_name
2863                                 ORDER BY count DESC LIMIT 55");
2864
2865                 $tags = array();
2866
2867                 while ($line = db_fetch_assoc($result)) {
2868                         $tags[$line["tag_name"]] += $line["count"];
2869                 }
2870
2871                 foreach (array_keys($tags) as $tag) {
2872                         $unread = $tags[$tag];
2873                         $tag = htmlspecialchars($tag);
2874
2875                         $cv = array("id" => $tag,
2876                                 "kind" => "tag",
2877                                 "counter" => $unread);
2878
2879                         array_push($ret_arr, $cv);
2880                 }
2881
2882                 return $ret_arr;
2883         }
2884
2885         function getVirtCounters($link) {
2886
2887                 $ret_arr = array();
2888
2889                 for ($i = 0; $i >= -4; $i--) {
2890
2891                         $count = getFeedUnread($link, $i);
2892
2893                         $cv = array("id" => $i,
2894                                 "counter" => $count);
2895
2896 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2897 //                              $cv["xmsg"] = getFeedArticles($link, $i)." ".__("total");
2898
2899                         array_push($ret_arr, $cv);
2900                 }
2901
2902                 return $ret_arr;
2903         }
2904
2905         function getLabelCounters($link, $descriptions = false) {
2906
2907                 $ret_arr = array();
2908
2909                 $age_qpart = getMaxAgeSubquery();
2910
2911                 $owner_uid = $_SESSION["uid"];
2912
2913                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2
2914                         WHERE owner_uid = '$owner_uid'");
2915
2916                 while ($line = db_fetch_assoc($result)) {
2917
2918                         $id = -$line["id"] - 11;
2919
2920                         $label_name = $line["caption"];
2921                         $count = getFeedUnread($link, $id);
2922
2923                         $cv = array("id" => $id,
2924                                 "counter" => $count);
2925
2926                         if ($descriptions)
2927                                 $cv["description"] = $label_name;
2928
2929 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2930 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2931
2932                         array_push($ret_arr, $cv);
2933                 }
2934
2935                 return $ret_arr;
2936         }
2937
2938         function getFeedCounters($link, $active_feed = false) {
2939
2940                 $ret_arr = array();
2941
2942                 $age_qpart = getMaxAgeSubquery();
2943
2944                 $query = "SELECT ttrss_feeds.id,
2945                                 ttrss_feeds.title,
2946                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
2947                                 last_error, value AS count
2948                         FROM ttrss_feeds, ttrss_counters_cache
2949                         WHERE ttrss_feeds.owner_uid = ".$_SESSION["uid"]."
2950                                 AND ttrss_counters_cache.feed_id = id";
2951
2952                 $result = db_query($link, $query);
2953                 $fctrs_modified = false;
2954
2955                 while ($line = db_fetch_assoc($result)) {
2956
2957                         $id = $line["id"];
2958                         $count = $line["count"];
2959                         $last_error = htmlspecialchars($line["last_error"]);
2960
2961                         $last_updated = make_local_datetime($link, $line['last_updated'], false);
2962
2963                         $has_img = feed_has_icon($id);
2964
2965                         if (date('Y') - date('Y', strtotime($line['last_updated'])) > 2)
2966                                 $last_updated = '';
2967
2968                         $cv = array("id" => $id,
2969                                 "updated" => $last_updated,
2970                                 "counter" => $count,
2971                                 "has_img" => (int) $has_img);
2972
2973                         if ($last_error)
2974                                 $cv["error"] = $last_error;
2975
2976 //                      if (get_pref($link, 'EXTENDED_FEEDLIST'))
2977 //                              $cv["xmsg"] = getFeedArticles($link, $id)." ".__("total");
2978
2979                         if ($active_feed && $id == $active_feed)
2980                                 $cv["title"] = truncate_string($line["title"], 30);
2981
2982                         array_push($ret_arr, $cv);
2983
2984                 }
2985
2986                 return $ret_arr;
2987         }
2988
2989         function get_pgsql_version($link) {
2990                 $result = db_query($link, "SELECT version() AS version");
2991                 $version = split(" ", db_fetch_result($result, 0, "version"));
2992                 return $version[1];
2993         }
2994
2995         /**
2996          * Subscribes the user to the given feed
2997          *
2998          * @param resource $link       Database connection
2999          * @param string   $url        Feed URL to subscribe to
3000          * @param integer  $cat_id     Category ID the feed shall be added to
3001          * @param string   $auth_login (optional) Feed username
3002          * @param string   $auth_pass  (optional) Feed password
3003          *
3004          * @return integer Status code:
3005          *                 0 - OK, Feed already exists
3006          *                 1 - OK, Feed added
3007          *                 2 - Invalid URL
3008          *                 3 - URL content is HTML, no feeds available
3009          *                 4 - URL content is HTML which contains multiple feeds.
3010          *                     Here you should call extractfeedurls in rpc-backend
3011          *                     to get all possible feeds.
3012          *                 5 - Couldn't download the URL content.
3013          */
3014         function subscribe_to_feed($link, $url, $cat_id = 0,
3015                         $auth_login = '', $auth_pass = '') {
3016
3017                 $url = fix_url($url);
3018
3019                 if (!$url || !validate_feed_url($url)) return 2;
3020
3021                 $update_method = 0;
3022
3023                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
3024                         WHERE id = ".$_SESSION['uid']);
3025
3026                 $has_oauth = db_fetch_result($result, 0, 'twitter_oauth');
3027
3028                 if (!$has_oauth || strpos($url, '://api.twitter.com') === false) {
3029                         if (!fetch_file_contents($url, false, $auth_login, $auth_pass)) return 5;
3030
3031                         if (url_is_html($url, $auth_login, $auth_pass)) {
3032                                 $feedUrls = get_feeds_from_html($url, $auth_login, $auth_pass);
3033                                 if (count($feedUrls) == 0) {
3034                                         return 3;
3035                                 } else if (count($feedUrls) > 1) {
3036                                         return 4;
3037                                 }
3038                                 //use feed url as new URL
3039                                 $url = key($feedUrls);
3040                         }
3041
3042                         } else {
3043                                 if (!fetch_twitter_rss($link, $url, $_SESSION['uid']))
3044                                         return 5;
3045
3046                                 $update_method = 3;
3047                         }
3048                 if ($cat_id == "0" || !$cat_id) {
3049                         $cat_qpart = "NULL";
3050                 } else {
3051                         $cat_qpart = "'$cat_id'";
3052                 }
3053
3054                 $result = db_query($link,
3055                         "SELECT id FROM ttrss_feeds
3056                         WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
3057
3058                 if (db_num_rows($result) == 0) {
3059                         $result = db_query($link,
3060                                 "INSERT INTO ttrss_feeds
3061                                         (owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
3062                                 VALUES ('".$_SESSION["uid"]."', '$url',
3063                                 '[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', '$update_method')");
3064
3065                         $result = db_query($link,
3066                                 "SELECT id FROM ttrss_feeds WHERE feed_url = '$url'
3067                                         AND owner_uid = " . $_SESSION["uid"]);
3068
3069                         $feed_id = db_fetch_result($result, 0, "id");
3070
3071                         if ($feed_id) {
3072                                 update_rss_feed($link, $feed_id, true);
3073                         }
3074
3075                         return 1;
3076                 } else {
3077                         return 0;
3078                 }
3079         }
3080
3081         function print_feed_select($link, $id, $default_id = "",
3082                 $attributes = "", $include_all_feeds = true) {
3083
3084                 print "<select id=\"$id\" name=\"$id\" $attributes>";
3085                 if ($include_all_feeds) {
3086                         print "<option value=\"0\">".__('All feeds')."</option>";
3087                 }
3088
3089                 $result = db_query($link, "SELECT id,title FROM ttrss_feeds
3090                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3091
3092                 if (db_num_rows($result) > 0 && $include_all_feeds) {
3093                         print "<option disabled>--------</option>";
3094                 }
3095
3096                 while ($line = db_fetch_assoc($result)) {
3097                         if ($line["id"] == $default_id) {
3098                                 $is_selected = "selected=\"1\"";
3099                         } else {
3100                                 $is_selected = "";
3101                         }
3102
3103                         $title = truncate_string(htmlspecialchars($line["title"]), 40);
3104
3105                         printf("<option $is_selected value='%d'>%s</option>",
3106                                 $line["id"], $title);
3107                 }
3108
3109                 print "</select>";
3110         }
3111
3112         function print_feed_cat_select($link, $id, $default_id = "",
3113                 $attributes = "", $include_all_cats = true) {
3114
3115                 print "<select id=\"$id\" name=\"$id\" default=\"$default_id\" onchange=\"catSelectOnChange(this)\" $attributes>";
3116
3117                 if ($include_all_cats) {
3118                         print "<option value=\"0\">".__('Uncategorized')."</option>";
3119                 }
3120
3121                 $result = db_query($link, "SELECT id,title FROM ttrss_feed_categories
3122                         WHERE owner_uid = ".$_SESSION["uid"]." ORDER BY title");
3123
3124                 if (db_num_rows($result) > 0 && $include_all_cats) {
3125                         print "<option disabled=\"1\">--------</option>";
3126                 }
3127
3128                 while ($line = db_fetch_assoc($result)) {
3129                         if ($line["id"] == $default_id) {
3130                                 $is_selected = "selected=\"1\"";
3131                         } else {
3132                                 $is_selected = "";
3133                         }
3134
3135                         if ($line["title"])
3136                                 printf("<option $is_selected value='%d'>%s</option>",
3137                                         $line["id"], htmlspecialchars($line["title"]));
3138                 }
3139
3140 #               print "<option value=\"ADD_CAT\">" .__("Add category...") . "</option>";
3141
3142                 print "</select>";
3143         }
3144
3145         function checkbox_to_sql_bool($val) {
3146                 return ($val == "on") ? "true" : "false";
3147         }
3148
3149         function getFeedCatTitle($link, $id) {
3150                 if ($id == -1) {
3151                         return __("Special");
3152                 } else if ($id < -10) {
3153                         return __("Labels");
3154                 } else if ($id > 0) {
3155                         $result = db_query($link, "SELECT ttrss_feed_categories.title
3156                                 FROM ttrss_feeds, ttrss_feed_categories WHERE ttrss_feeds.id = '$id' AND
3157                                         cat_id = ttrss_feed_categories.id");
3158                         if (db_num_rows($result) == 1) {
3159                                 return db_fetch_result($result, 0, "title");
3160                         } else {
3161                                 return __("Uncategorized");
3162                         }
3163                 } else {
3164                         return "getFeedCatTitle($id) failed";
3165                 }
3166
3167         }
3168
3169         function getFeedIcon($id) {
3170                 switch ($id) {
3171                 case 0:
3172                         return "images/archive.png";
3173                         break;
3174                 case -1:
3175                         return "images/mark_set.png";
3176                         break;
3177                 case -2:
3178                         return "images/pub_set.png";
3179                         break;
3180                 case -3:
3181                         return "images/fresh.png";
3182                         break;
3183                 case -4:
3184                         return "images/tag.png";
3185                         break;
3186                 default:
3187                         if ($id < -10) {
3188                                 return "images/label.png";
3189                         } else {
3190                                 if (file_exists(ICONS_DIR . "/$id.ico"))
3191                                         return ICONS_URL . "/$id.ico";
3192                         }
3193                         break;
3194                 }
3195         }
3196
3197         function getFeedTitle($link, $id) {
3198                 if ($id == -1) {
3199                         return __("Starred articles");
3200                 } else if ($id == -2) {
3201                         return __("Published articles");
3202                 } else if ($id == -3) {
3203                         return __("Fresh articles");
3204                 } else if ($id == -4) {
3205                         return __("All articles");
3206                 } else if ($id === 0 || $id === "0") {
3207                         return __("Archived articles");
3208                 } else if ($id < -10) {
3209                         $label_id = -$id - 11;
3210                         $result = db_query($link, "SELECT caption FROM ttrss_labels2 WHERE id = '$label_id'");
3211                         if (db_num_rows($result) == 1) {
3212                                 return db_fetch_result($result, 0, "caption");
3213                         } else {
3214                                 return "Unknown label ($label_id)";
3215                         }
3216
3217                 } else if ($id > 0) {
3218                         $result = db_query($link, "SELECT title FROM ttrss_feeds WHERE id = '$id'");
3219                         if (db_num_rows($result) == 1) {
3220                                 return db_fetch_result($result, 0, "title");
3221                         } else {
3222                                 return "Unknown feed ($id)";
3223                         }
3224                 } else {
3225                         return $id;
3226                 }
3227         }
3228
3229         function get_session_cookie_name() {
3230                 return ((!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME);
3231         }
3232
3233         function make_init_params($link) {
3234                 $params = array();
3235
3236                 $params["theme"] = get_user_theme($link);
3237                 $params["theme_options"] = get_user_theme_options($link);
3238
3239                 $params["sign_progress"] = theme_image($link, "images/indicator_white.gif");
3240                 $params["sign_progress_tiny"] = theme_image($link, "images/indicator_tiny.gif");
3241                 $params["sign_excl"] = theme_image($link, "images/sign_excl.png");
3242                 $params["sign_info"] = theme_image($link, "images/sign_info.png");
3243
3244                 foreach (array("ON_CATCHUP_SHOW_NEXT_FEED", "HIDE_READ_FEEDS",
3245                         "ENABLE_FEED_CATS", "FEEDS_SORT_BY_UNREAD", "CONFIRM_FEED_CATCHUP",
3246                         "CDM_AUTO_CATCHUP", "FRESH_ARTICLE_MAX_AGE", "DEFAULT_ARTICLE_LIMIT",
3247                         "HIDE_READ_SHOWS_SPECIAL", "COMBINED_DISPLAY_MODE") as $param) {
3248
3249                                  $params[strtolower($param)] = (int) get_pref($link, $param);
3250                  }
3251
3252                 $params["icons_url"] = ICONS_URL;
3253                 $params["cookie_lifetime"] = SESSION_COOKIE_LIFETIME;
3254                 $params["default_view_mode"] = get_pref($link, "_DEFAULT_VIEW_MODE");
3255                 $params["default_view_limit"] = (int) get_pref($link, "_DEFAULT_VIEW_LIMIT");
3256                 $params["default_view_order_by"] = get_pref($link, "_DEFAULT_VIEW_ORDER_BY");
3257                 $params["bw_limit"] = (int) $_SESSION["bw_limit"];
3258
3259                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3260                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3261
3262                 $max_feed_id = db_fetch_result($result, 0, "mid");
3263                 $num_feeds = db_fetch_result($result, 0, "nf");
3264
3265                 $params["max_feed_id"] = (int) $max_feed_id;
3266                 $params["num_feeds"] = (int) $num_feeds;
3267
3268                 $params["collapsed_feedlist"] = (int) get_pref($link, "_COLLAPSED_FEEDLIST");
3269
3270                 return $params;
3271         }
3272
3273         function print_runtime_info($link) {
3274                 print "<runtime-info><![CDATA[";
3275                 print json_encode(make_runtime_info($link));
3276                 print "]]></runtime-info>";
3277         }
3278
3279         function make_runtime_info($link) {
3280                 $data = array();
3281
3282                 $result = db_query($link, "SELECT MAX(id) AS mid, COUNT(*) AS nf FROM
3283                         ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
3284
3285                 $max_feed_id = db_fetch_result($result, 0, "mid");
3286                 $num_feeds = db_fetch_result($result, 0, "nf");
3287
3288                 $data["max_feed_id"] = (int) $max_feed_id;
3289                 $data["num_feeds"] = (int) $num_feeds;
3290
3291                 $data['last_article_id'] = getLastArticleId($link);
3292                 $data['cdm_expanded'] = get_pref($link, 'CDM_EXPANDED');
3293
3294                 if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
3295
3296                         $data['daemon_is_running'] = (int) file_is_locked("update_daemon.lock");
3297
3298                         if (time() - $_SESSION["daemon_stamp_check"] > 30) {
3299
3300                                 $stamp = (int) @file_get_contents(LOCK_DIRECTORY . "/update_daemon.stamp");
3301
3302                                 if ($stamp) {
3303                                         $stamp_delta = time() - $stamp;
3304
3305                                         if ($stamp_delta > 1800) {
3306                                                 $stamp_check = 0;
3307                                         } else {
3308                                                 $stamp_check = 1;
3309                                                 $_SESSION["daemon_stamp_check"] = time();
3310                                         }
3311
3312                                         $data['daemon_stamp_ok'] = $stamp_check;
3313
3314                                         $stamp_fmt = date("Y.m.d, G:i", $stamp);
3315
3316                                         $data['daemon_stamp'] = $stamp_fmt;
3317                                 }
3318                         }
3319                 }
3320
3321                 if ($_SESSION["last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
3322                                 $new_version_details = @check_for_update($link);
3323
3324                                 $data['new_version_available'] = (int) ($new_version_details != false);
3325
3326                                 $_SESSION["last_version_check"] = time();
3327                 }
3328
3329                 return $data;
3330         }
3331
3332         function getSearchSql($link, $search, $match_on) {
3333
3334                 $search_query_part = "";
3335
3336                 $keywords = split(" ", $search);
3337                 $query_keywords = array();
3338
3339                 foreach ($keywords as $k) {
3340                         if (strpos($k, "-") === 0) {
3341                                 $k = substr($k, 1);
3342                                 $not = "NOT";
3343                         } else {
3344                                 $not = "";
3345                         }
3346
3347                         if (strpos($k, "@") === 0) {
3348
3349                                 $user_tz_string = get_pref($link, 'USER_TIMEZONE', $_SESSION['uid']);
3350                                 $orig_ts = strtotime(substr($k, 1));
3351
3352                                 $k = date("Y-m-d", convert_timestamp($orig_ts, $user_tz_string, 'UTC'));
3353
3354                                 array_push($query_keywords, "(".SUBSTRING_FOR_DATE."(updated,1,LENGTH('$k')) $not = '$k')");
3355                         } else if ($match_on == "both") {
3356                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%')
3357                                                 OR UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3358                         } else if ($match_on == "title") {
3359                                 array_push($query_keywords, "(UPPER(ttrss_entries.title) $not LIKE UPPER('%$k%'))");
3360                         } else if ($match_on == "content") {
3361                                 array_push($query_keywords, "(UPPER(ttrss_entries.content) $not LIKE UPPER('%$k%'))");
3362                         }
3363                 }
3364
3365                 $search_query_part = implode("AND", $query_keywords);
3366
3367                 return $search_query_part;
3368         }
3369
3370         function queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view, $search, $search_mode, $match_on, $override_order = false, $offset = 0, $owner_uid = 0) {
3371
3372                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
3373
3374                 $ext_tables_part = "";
3375
3376                         if ($search) {
3377
3378                                 if (SPHINX_ENABLED) {
3379                                         $ids = join(",", @sphinx_search($search, 0, 500));
3380
3381                                         if ($ids)
3382                                                 $search_query_part = "ref_id IN ($ids) AND ";
3383                                         else
3384                                                 $search_query_part = "ref_id = -1 AND ";
3385
3386                                 } else {
3387                                         $search_query_part = getSearchSql($link, $search, $match_on);
3388                                         $search_query_part .= " AND ";
3389                                 }
3390
3391                         } else {
3392                                 $search_query_part = "";
3393                         }
3394
3395                         $view_query_part = "";
3396
3397                         if ($view_mode == "adaptive" || $view_query_part == "noscores") {
3398                                 if ($search) {
3399                                         $view_query_part = " ";
3400                                 } else if ($feed != -1) {
3401                                         $unread = getFeedUnread($link, $feed, $cat_view);
3402                                         if ($unread > 0) {
3403                                                 $view_query_part = " unread = true AND ";
3404                                         }
3405                                 }
3406                         }
3407
3408                         if ($view_mode == "marked") {
3409                                 $view_query_part = " marked = true AND ";
3410                         }
3411
3412                         if ($view_mode == "published") {
3413                                 $view_query_part = " published = true AND ";
3414                         }
3415
3416                         if ($view_mode == "unread") {
3417                                 $view_query_part = " unread = true AND ";
3418                         }
3419
3420                         if ($view_mode == "updated") {
3421                                 $view_query_part = " (last_read is null and unread = false) AND ";
3422                         }
3423
3424                         if ($limit > 0) {
3425                                 $limit_query_part = "LIMIT " . $limit;
3426                         }
3427
3428                         $vfeed_query_part = "";
3429
3430                         // override query strategy and enable feed display when searching globally
3431                         if ($search && $search_mode == "all_feeds") {
3432                                 $query_strategy_part = "ttrss_entries.id > 0";
3433                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3434                         /* tags */
3435                         } else if (preg_match("/^-?[0-9][0-9]*$/", $feed) == false) {
3436                                 $query_strategy_part = "ttrss_entries.id > 0";
3437                                 $vfeed_query_part = "(SELECT title FROM ttrss_feeds WHERE
3438                                         id = feed_id) as feed_title,";
3439                         } else if ($feed > 0 && $search && $search_mode == "this_cat") {
3440
3441                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3442
3443                                 $tmp_result = false;
3444
3445                                 if ($cat_view) {
3446                                         $tmp_result = db_query($link, "SELECT id
3447                                                 FROM ttrss_feeds WHERE cat_id = '$feed'");
3448                                 } else {
3449                                         $tmp_result = db_query($link, "SELECT id
3450                                                 FROM ttrss_feeds WHERE cat_id = (SELECT cat_id FROM ttrss_feeds
3451                                                         WHERE id = '$feed') AND id != '$feed'");
3452                                 }
3453
3454                                 $cat_siblings = array();
3455
3456                                 if (db_num_rows($tmp_result) > 0) {
3457                                         while ($p = db_fetch_assoc($tmp_result)) {
3458                                                 array_push($cat_siblings, "feed_id = " . $p["id"]);
3459                                         }
3460
3461                                         $query_strategy_part = sprintf("(feed_id = %d OR %s)",
3462                                                 $feed, implode(" OR ", $cat_siblings));
3463
3464                                 } else {
3465                                         $query_strategy_part = "ttrss_entries.id > 0";
3466                                 }
3467
3468                         } else if ($feed > 0) {
3469
3470                                 if ($cat_view) {
3471
3472                                         if ($feed > 0) {
3473                                                 $query_strategy_part = "cat_id = '$feed'";
3474                                         } else {
3475                                                 $query_strategy_part = "cat_id IS NULL";
3476                                         }
3477
3478                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3479
3480                                 } else {
3481                                         $query_strategy_part = "feed_id = '$feed'";
3482                                 }
3483                         } else if ($feed == 0 && !$cat_view) { // archive virtual feed
3484                                 $query_strategy_part = "feed_id IS NULL";
3485                         } else if ($feed == 0 && $cat_view) { // uncategorized
3486                                 $query_strategy_part = "cat_id IS NULL";
3487                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3488                         } else if ($feed == -1) { // starred virtual feed
3489                                 $query_strategy_part = "marked = true";
3490                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3491                         } else if ($feed == -2) { // published virtual feed OR labels category
3492
3493                                 if (!$cat_view) {
3494                                         $query_strategy_part = "published = true";
3495                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3496                                 } else {
3497                                         $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3498
3499                                         $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3500
3501                                         $query_strategy_part = "ttrss_labels2.id = ttrss_user_labels2.label_id AND
3502                                                 ttrss_user_labels2.article_id = ref_id";
3503
3504                                 }
3505
3506                         } else if ($feed == -3) { // fresh virtual feed
3507                                 $query_strategy_part = "unread = true AND score >= 0";
3508
3509                                 $intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE", $owner_uid);
3510
3511                                 if (DB_TYPE == "pgsql") {
3512                                         $query_strategy_part .= " AND updated > NOW() - INTERVAL '$intl hour' ";
3513                                 } else {
3514                                         $query_strategy_part .= " AND updated > DATE_SUB(NOW(), INTERVAL $intl HOUR) ";
3515                                 }
3516
3517                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3518                         } else if ($feed == -4) { // all articles virtual feed
3519                                 $query_strategy_part = "true";
3520                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3521                         } else if ($feed <= -10) { // labels
3522                                 $label_id = -$feed - 11;
3523
3524                                 $query_strategy_part = "label_id = '$label_id' AND
3525                                         ttrss_labels2.id = ttrss_user_labels2.label_id AND
3526                                         ttrss_user_labels2.article_id = ref_id";
3527
3528                                 $vfeed_query_part = "ttrss_feeds.title AS feed_title,";
3529                                 $ext_tables_part = ",ttrss_labels2,ttrss_user_labels2";
3530
3531                         } else {
3532                                 $query_strategy_part = "id > 0"; // dumb
3533                         }
3534
3535                         if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3536                                 $date_sort_field = "updated";
3537                         } else {
3538                                 $date_sort_field = "date_entered";
3539                         }
3540
3541                         if (get_pref($link, 'REVERSE_HEADLINES', $owner_uid)) {
3542                                 $order_by = "$date_sort_field";
3543                         } else {
3544                                 $order_by = "$date_sort_field DESC";
3545                         }
3546
3547                         if ($view_mode != "noscores") {
3548                                 $order_by = "score DESC, $order_by";
3549                         }
3550
3551                         if ($override_order) {
3552                                 $order_by = $override_order;
3553                         }
3554
3555                         $feed_title = "";
3556
3557                         if ($search) {
3558                                 $feed_title = "Search results";
3559                         } else {
3560                                 if ($cat_view) {
3561                                         $feed_title = getCategoryTitle($link, $feed);
3562                                 } else {
3563                                         if ((int)$feed == $feed && $feed > 0) {
3564                                                 $result = db_query($link, "SELECT title,site_url,last_error
3565                                                         FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = $owner_uid");
3566
3567                                                 $feed_title = db_fetch_result($result, 0, "title");
3568                                                 $feed_site_url = db_fetch_result($result, 0, "site_url");
3569                                                 $last_error = db_fetch_result($result, 0, "last_error");
3570                                         } else {
3571                                                 $feed_title = getFeedTitle($link, $feed);
3572                                         }
3573                                 }
3574                         }
3575
3576                         $content_query_part = "content as content_preview,";
3577
3578                         if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
3579
3580                                 if ($feed >= 0) {
3581                                         $feed_kind = "Feeds";
3582                                 } else {
3583                                         $feed_kind = "Labels";
3584                                 }
3585
3586                                 if ($limit_query_part) {
3587                                         $offset_query_part = "OFFSET $offset";
3588                                 }
3589
3590                                 if ($vfeed_query_part && get_pref($link, 'VFEED_GROUP_BY_FEED', $owner_uid)) {
3591                                         if (!$override_order) {
3592                                                 $order_by = "ttrss_feeds.title, $order_by";
3593                                         }
3594                                 }
3595
3596                                 if ($feed != "0") {
3597                                         $from_qpart = "ttrss_entries,ttrss_user_entries,ttrss_feeds$ext_tables_part";
3598                                         $feed_check_qpart = "ttrss_user_entries.feed_id = ttrss_feeds.id AND";
3599
3600                                 } else {
3601                                         $from_qpart = "ttrss_entries,ttrss_user_entries$ext_tables_part
3602                                                 LEFT JOIN ttrss_feeds ON (feed_id = ttrss_feeds.id)";
3603                                 }
3604
3605                                 $query = "SELECT DISTINCT
3606                                                 date_entered,
3607                                                 guid,
3608                                                 ttrss_entries.id,ttrss_entries.title,
3609                                                 updated,
3610                                                 note,
3611                                                 unread,feed_id,marked,published,link,last_read,orig_feed_id,
3612                                                 ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3613                                                 $vfeed_query_part
3614                                                 $content_query_part
3615                                                 ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3616                                                 author,score
3617                                         FROM
3618                                                 $from_qpart
3619                                         WHERE
3620                                         $feed_check_qpart
3621                                         ttrss_user_entries.ref_id = ttrss_entries.id AND
3622                                         ttrss_user_entries.owner_uid = '$owner_uid' AND
3623                                         $search_query_part
3624                                         $view_query_part
3625                                         $query_strategy_part ORDER BY $order_by
3626                                         $limit_query_part $offset_query_part";
3627
3628                                 if ($_REQUEST["debug"]) print $query;
3629
3630                                 $result = db_query($link, $query);
3631
3632                         } else {
3633                                 // browsing by tag
3634
3635                                 $feed_kind = "Tags";
3636
3637                                 $result = db_query($link, "SELECT DISTINCT
3638                                         date_entered,
3639                                         guid,
3640                                         note,
3641                                         ttrss_entries.id as id,title,
3642                                         updated,
3643                                         unread,feed_id,orig_feed_id,
3644                                         marked,link,last_read,
3645                                         ".SUBSTRING_FOR_DATE."(last_read,1,19) as last_read_noms,
3646                                         $vfeed_query_part
3647                                         $content_query_part
3648                                         ".SUBSTRING_FOR_DATE."(updated,1,19) as updated_noms,
3649                                         score
3650                                         FROM
3651                                                 ttrss_entries,ttrss_user_entries,ttrss_tags
3652                                         WHERE
3653                                                 ref_id = ttrss_entries.id AND
3654                                                 ttrss_user_entries.owner_uid = '$owner_uid' AND
3655                                                 post_int_id = int_id AND tag_name = '$feed' AND
3656                                                 $view_query_part
3657                                                 $search_query_part
3658                                                 $query_strategy_part ORDER BY $order_by
3659                                         $limit_query_part");
3660                         }
3661
3662                         return array($result, $feed_title, $feed_site_url, $last_error);
3663
3664         }
3665
3666         function generate_syndicated_feed($link, $owner_uid, $feed, $is_cat,
3667                 $limit, $search, $search_mode, $match_on, $view_mode = false) {
3668
3669                 require_once "lib/MiniTemplator.class.php";
3670
3671                 $note_style =   "float : right; background-color : #fff7d5; border-width : 1px; ".
3672                         "padding : 5px; border-style : dashed; border-color : #e7d796;".
3673                         "margin-bottom : 1em; color : #9a8c59;";
3674
3675                 if (!$limit) $limit = 30;
3676
3677                 if (get_pref($link, "SORT_HEADLINES_BY_FEED_DATE", $owner_uid)) {
3678                         $date_sort_field = "updated";
3679                 } else {
3680                         $date_sort_field = "date_entered";
3681                 }
3682
3683                 $qfh_ret = queryFeedHeadlines($link, $feed,
3684                         $limit, $view_mode, $is_cat, $search, $search_mode,
3685                         $match_on, "$date_sort_field DESC", 0, $owner_uid);
3686
3687                 $result = $qfh_ret[0];
3688                 $feed_title = htmlspecialchars($qfh_ret[1]);
3689                 $feed_site_url = $qfh_ret[2];
3690                 $last_error = $qfh_ret[3];
3691
3692                 $feed_self_url = get_self_url_prefix() .
3693                         "/backend.php?op=rss&id=-2&key=" .
3694                         get_feed_access_key($link, -2, false);
3695
3696                 if (!$feed_site_url) $feed_site_url = get_self_url_prefix();
3697
3698                 $tpl = new MiniTemplator;
3699
3700                 $tpl->readTemplateFromFile("templates/generated_feed.txt");
3701
3702                 $tpl->setVariable('FEED_TITLE', $feed_title);
3703                 $tpl->setVariable('VERSION', VERSION);
3704                 $tpl->setVariable('FEED_URL', htmlspecialchars($feed_self_url));
3705
3706                 if (PUBSUBHUBBUB_HUB && $feed == -2) {
3707                         $tpl->setVariable('HUB_URL', htmlspecialchars(PUBSUBHUBBUB_HUB));
3708                         $tpl->addBlock('feed_hub');
3709                 }
3710
3711                 $tpl->setVariable('SELF_URL', htmlspecialchars(get_self_url_prefix()));
3712
3713                 while ($line = db_fetch_assoc($result)) {
3714                         $tpl->setVariable('ARTICLE_ID', htmlspecialchars($line['link']));
3715                         $tpl->setVariable('ARTICLE_LINK', htmlspecialchars($line['link']));
3716                         $tpl->setVariable('ARTICLE_TITLE', htmlspecialchars($line['title']));
3717                         $tpl->setVariable('ARTICLE_EXCERPT',
3718                                 truncate_string(strip_tags($line["content_preview"]), 100, '...'));
3719
3720                         $content = sanitize_rss($link, $line["content_preview"], false, $owner_uid);
3721
3722                         if ($line['note']) {
3723                                 $content = "<div style=\"$note_style\">" . $line['note'] . "</div>" .
3724                                         $content;
3725                         }
3726
3727                         $tpl->setVariable('ARTICLE_CONTENT', $content);
3728
3729                         $tpl->setVariable('ARTICLE_UPDATED', date('c', strtotime($line["updated"])));
3730                         $tpl->setVariable('ARTICLE_AUTHOR', htmlspecialchars($line['author']));
3731
3732                         $tags = get_article_tags($link, $line["id"], $owner_uid);
3733
3734                         foreach ($tags as $tag) {
3735                                 $tpl->setVariable('ARTICLE_CATEGORY', htmlspecialchars($tag));
3736                                 $tpl->addBlock('category');
3737                         }
3738
3739                         $enclosures = get_article_enclosures($link, $line["id"]);
3740
3741                         foreach ($enclosures as $e) {
3742                                 $type = htmlspecialchars($e['content_type']);
3743                                 $url = htmlspecialchars($e['content_url']);
3744                                 $length = $e['duration'];
3745
3746                                 $tpl->setVariable('ARTICLE_ENCLOSURE_URL', $url);
3747                                 $tpl->setVariable('ARTICLE_ENCLOSURE_TYPE', $type);
3748                                 $tpl->setVariable('ARTICLE_ENCLOSURE_LENGTH', $length);
3749
3750                                 $tpl->addBlock('enclosure');
3751                         }
3752
3753                         $tpl->addBlock('entry');
3754                 }
3755
3756                 $tmp = "";
3757
3758                 $tpl->addBlock('feed');
3759                 $tpl->generateOutputToString($tmp);
3760
3761                 print $tmp;
3762         }
3763
3764         function getCategoryTitle($link, $cat_id) {
3765
3766                 if ($cat_id == -1) {
3767                         return __("Special");
3768                 } else if ($cat_id == -2) {
3769                         return __("Labels");
3770                 } else {
3771
3772                         $result = db_query($link, "SELECT title FROM ttrss_feed_categories WHERE
3773                                 id = '$cat_id'");
3774
3775                         if (db_num_rows($result) == 1) {
3776                                 return db_fetch_result($result, 0, "title");
3777                         } else {
3778                                 return "Uncategorized";
3779                         }
3780                 }
3781         }
3782
3783         function sanitize_rss($link, $str, $force_strip_tags = false, $owner = false, $site_url = false) {
3784                 global $purifier;
3785
3786                 if (!$owner) $owner = $_SESSION["uid"];
3787
3788                 $res = trim($str); if (!$res) return '';
3789
3790 //              if (get_pref($link, "STRIP_UNSAFE_TAGS", $owner) || $force_strip_tags) {
3791                 $res = $purifier->purify($res);
3792 //              }
3793
3794                 if (get_pref($link, "STRIP_IMAGES", $owner)) {
3795                         $res = preg_replace('/<img[^>]+>/is', '', $res);
3796                 }
3797
3798                 if (strpos($res, "href=") === false)
3799                         $res = rewrite_urls($res);
3800
3801                 $charset_hack = '<head>
3802                         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
3803                 </head>';
3804
3805                 $res = trim($res); if (!$res) return '';
3806
3807                 libxml_use_internal_errors(true);
3808
3809                 $doc = new DOMDocument();
3810                 $doc->loadHTML($charset_hack . $res);
3811                 $xpath = new DOMXPath($doc);
3812
3813                 $entries = $xpath->query('(//a[@href]|//img[@src])');
3814                 $br_inserted = 0;
3815
3816                 foreach ($entries as $entry) {
3817
3818                         if ($site_url) {
3819
3820                                 if ($entry->hasAttribute('href'))
3821                                         $entry->setAttribute('href',
3822                                                 rewrite_relative_url($site_url, $entry->getAttribute('href')));
3823
3824                                 if ($entry->hasAttribute('src'))
3825                                         if (preg_match('/^image.php\?i=[a-z0-9]+$/', $entry->getAttribute('src')) == 0)
3826                                                 $entry->setAttribute('src',
3827                                                         rewrite_relative_url($site_url, $entry->getAttribute('src')));
3828                         }
3829
3830                         if (strtolower($entry->nodeName) == "a") {
3831                                 $entry->setAttribute("target", "_blank");
3832                         }
3833
3834                         if (strtolower($entry->nodeName) == "img" && !$br_inserted) {
3835                                 $br = $doc->createElement("br");
3836
3837                                 if ($entry->parentNode->nextSibling) {
3838                                         $entry->parentNode->insertBefore($br, $entry->nextSibling);
3839                                         $br_inserted = 1;
3840                                 }
3841
3842                         }
3843                 }
3844
3845                 $node = $doc->getElementsByTagName('body')->item(0);
3846
3847                 return $doc->saveXML($node);
3848         }
3849
3850         /**
3851          * Send by mail a digest of last articles.
3852          *
3853          * @param mixed $link The database connection.
3854          * @param integer $limit The maximum number of articles by digest.
3855          * @return boolean Return false if digests are not enabled.
3856          */
3857         function send_headlines_digests($link, $limit = 100) {
3858
3859                 if (!DIGEST_ENABLE) return false;
3860
3861                 $user_limit = DIGEST_EMAIL_LIMIT;
3862                 $days = 1;
3863
3864                 print "Sending digests, batch of max $user_limit users, days = $days, headline limit = $limit\n\n";
3865
3866                 if (DB_TYPE == "pgsql") {
3867                         $interval_query = "last_digest_sent < NOW() - INTERVAL '$days days'";
3868                 } else if (DB_TYPE == "mysql") {
3869                         $interval_query = "last_digest_sent < DATE_SUB(NOW(), INTERVAL $days DAY)";
3870                 }
3871
3872                 $result = db_query($link, "SELECT id,email FROM ttrss_users
3873                                 WHERE email != '' AND (last_digest_sent IS NULL OR $interval_query)");
3874
3875                 while ($line = db_fetch_assoc($result)) {
3876
3877                         if (get_pref($link, 'DIGEST_ENABLE', $line['id'], false)) {
3878                                 print "Sending digest for UID:" . $line['id'] . " - " . $line["email"] . " ... ";
3879
3880                                 $do_catchup = get_pref($link, 'DIGEST_CATCHUP', $line['id'], false);
3881
3882                                 $tuple = prepare_headlines_digest($link, $line["id"], $days, $limit);
3883                                 $digest = $tuple[0];
3884                                 $headlines_count = $tuple[1];
3885                                 $affected_ids = $tuple[2];
3886                                 $digest_text = $tuple[3];
3887
3888                                 if ($headlines_count > 0) {
3889
3890                                         $mail = new PHPMailer();
3891
3892                                         $mail->PluginDir = "lib/phpmailer/";
3893                                         $mail->SetLanguage("en", "lib/phpmailer/language/");
3894
3895                                         $mail->CharSet = "UTF-8";
3896
3897                                         $mail->From = DIGEST_FROM_ADDRESS;
3898                                         $mail->FromName = DIGEST_FROM_NAME;
3899                                         $mail->AddAddress($line["email"], $line["login"]);
3900
3901                                         if (DIGEST_SMTP_HOST) {
3902                                                 $mail->Host = DIGEST_SMTP_HOST;
3903                                                 $mail->Mailer = "smtp";
3904                                                 $mail->SMTPAuth = DIGEST_SMTP_LOGIN != '';
3905                                                 $mail->Username = DIGEST_SMTP_LOGIN;
3906                                                 $mail->Password = DIGEST_SMTP_PASSWORD;
3907                                         }
3908
3909                                         $mail->IsHTML(true);
3910                                         $mail->Subject = DIGEST_SUBJECT;
3911                                         $mail->Body = $digest;
3912                                         $mail->AltBody = $digest_text;
3913
3914                                         $rc = $mail->Send();
3915
3916                                         if (!$rc) print "ERROR: " . $mail->ErrorInfo;
3917
3918                                         print "RC=$rc\n";
3919
3920                                         if ($rc && $do_catchup) {
3921                                                 print "Marking affected articles as read...\n";
3922                                                 catchupArticlesById($link, $affected_ids, 0, $line["id"]);
3923                                         }
3924                                 } else {
3925                                         print "No headlines\n";
3926                                 }
3927
3928                                 db_query($link, "UPDATE ttrss_users SET last_digest_sent = NOW()
3929                                         WHERE id = " . $line["id"]);
3930                         }
3931                 }
3932
3933                 print "All done.\n";
3934
3935         }
3936
3937         function prepare_headlines_digest($link, $user_id, $days = 1, $limit = 100) {
3938
3939                 require_once "lib/MiniTemplator.class.php";
3940
3941                 $tpl = new MiniTemplator;
3942                 $tpl_t = new MiniTemplator;
3943
3944                 $tpl->readTemplateFromFile("templates/digest_template_html.txt");
3945                 $tpl_t->readTemplateFromFile("templates/digest_template.txt");
3946
3947                 $tpl->setVariable('CUR_DATE', date('Y/m/d'));
3948                 $tpl->setVariable('CUR_TIME', date('G:i'));
3949
3950                 $tpl_t->setVariable('CUR_DATE', date('Y/m/d'));
3951                 $tpl_t->setVariable('CUR_TIME', date('G:i'));
3952
3953                 $affected_ids = array();
3954
3955                 if (DB_TYPE == "pgsql") {
3956                         $interval_query = "ttrss_entries.date_updated > NOW() - INTERVAL '$days days'";
3957                 } else if (DB_TYPE == "mysql") {
3958                         $interval_query = "ttrss_entries.date_updated > DATE_SUB(NOW(), INTERVAL $days DAY)";
3959                 }
3960
3961                 $result = db_query($link, "SELECT ttrss_entries.title,
3962                                 ttrss_feeds.title AS feed_title,
3963                                 date_updated,
3964                                 ttrss_user_entries.ref_id,
3965                                 link,
3966                                 SUBSTRING(content, 1, 120) AS excerpt,
3967                                 ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
3968                         FROM
3969                                 ttrss_user_entries,ttrss_entries,ttrss_feeds
3970                         WHERE
3971                                 ref_id = ttrss_entries.id AND feed_id = ttrss_feeds.id
3972                                 AND include_in_digest = true
3973                                 AND $interval_query
3974                                 AND ttrss_user_entries.owner_uid = $user_id
3975                                 AND unread = true
3976                         ORDER BY ttrss_feeds.title, date_updated DESC
3977                         LIMIT $limit");
3978
3979                 $cur_feed_title = "";
3980
3981                 $headlines_count = db_num_rows($result);
3982
3983                 $headlines = array();
3984
3985                 while ($line = db_fetch_assoc($result)) {
3986                         array_push($headlines, $line);
3987                 }
3988
3989                 for ($i = 0; $i < sizeof($headlines); $i++) {
3990
3991                         $line = $headlines[$i];
3992
3993                         array_push($affected_ids, $line["ref_id"]);
3994
3995                         $updated = make_local_datetime($link, $line['last_updated'], false,
3996                                 $user_id);
3997
3998                         $tpl->setVariable('FEED_TITLE', $line["feed_title"]);
3999                         $tpl->setVariable('ARTICLE_TITLE', $line["title"]);
4000                         $tpl->setVariable('ARTICLE_LINK', $line["link"]);
4001                         $tpl->setVariable('ARTICLE_UPDATED', $updated);
4002                         $tpl->setVariable('ARTICLE_EXCERPT',
4003                                 truncate_string(strip_tags($line["excerpt"]), 100));
4004
4005                         $tpl->addBlock('article');
4006
4007                         $tpl_t->setVariable('FEED_TITLE', $line["feed_title"]);
4008                         $tpl_t->setVariable('ARTICLE_TITLE', $line["title"]);
4009                         $tpl_t->setVariable('ARTICLE_LINK', $line["link"]);
4010                         $tpl_t->setVariable('ARTICLE_UPDATED', $updated);
4011 //                      $tpl_t->setVariable('ARTICLE_EXCERPT',
4012 //                              truncate_string(strip_tags($line["excerpt"]), 100));
4013
4014                         $tpl_t->addBlock('article');
4015
4016                         if ($headlines[$i]['feed_title'] != $headlines[$i+1]['feed_title']) {
4017                                 $tpl->addBlock('feed');
4018                                 $tpl_t->addBlock('feed');
4019                         }
4020
4021                 }
4022
4023                 $tpl->addBlock('digest');
4024                 $tpl->generateOutputToString($tmp);
4025
4026                 $tpl_t->addBlock('digest');
4027                 $tpl_t->generateOutputToString($tmp_t);
4028
4029                 return array($tmp, $headlines_count, $affected_ids, $tmp_t);
4030         }
4031
4032         function check_for_update($link) {
4033                 if (CHECK_FOR_NEW_VERSION && $_SESSION['access_level'] >= 10) {
4034                         $version_url = "http://tt-rss.org/version.php?ver=" . VERSION;
4035
4036                         $version_data = @fetch_file_contents($version_url);
4037
4038                         if ($version_data) {
4039                                 $version_data = json_decode($version_data, true);
4040                                 if ($version_data && $version_data['version']) {
4041
4042                                         if (version_compare(VERSION, $version_data['version']) == -1) {
4043                                                 return $version_data;
4044                                         }
4045                                 }
4046                         }
4047                 }
4048                 return false;
4049         }
4050
4051         function markArticlesById($link, $ids, $cmode) {
4052
4053                 $tmp_ids = array();
4054
4055                 foreach ($ids as $id) {
4056                         array_push($tmp_ids, "ref_id = '$id'");
4057                 }
4058
4059                 $ids_qpart = join(" OR ", $tmp_ids);
4060
4061                 if ($cmode == 0) {
4062                         db_query($link, "UPDATE ttrss_user_entries SET
4063                         marked = false,last_read = NOW()
4064                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4065                 } else if ($cmode == 1) {
4066                         db_query($link, "UPDATE ttrss_user_entries SET
4067                         marked = true
4068                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4069                 } else {
4070                         db_query($link, "UPDATE ttrss_user_entries SET
4071                         marked = NOT marked,last_read = NOW()
4072                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4073                 }
4074         }
4075
4076         function publishArticlesById($link, $ids, $cmode) {
4077
4078                 $tmp_ids = array();
4079
4080                 foreach ($ids as $id) {
4081                         array_push($tmp_ids, "ref_id = '$id'");
4082                 }
4083
4084                 $ids_qpart = join(" OR ", $tmp_ids);
4085
4086                 if ($cmode == 0) {
4087                         db_query($link, "UPDATE ttrss_user_entries SET
4088                         published = false,last_read = NOW()
4089                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4090                 } else if ($cmode == 1) {
4091                         db_query($link, "UPDATE ttrss_user_entries SET
4092                         published = true
4093                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4094                 } else {
4095                         db_query($link, "UPDATE ttrss_user_entries SET
4096                         published = NOT published,last_read = NOW()
4097                         WHERE ($ids_qpart) AND owner_uid = " . $_SESSION["uid"]);
4098                 }
4099
4100                 if (PUBSUBHUBBUB_HUB) {
4101                         $rss_link = get_self_url_prefix() .
4102                                 "/backend.php?op=rss&id=-2&key=" .
4103                                 get_feed_access_key($link, -2, false);
4104
4105                         $p = new Publisher(PUBSUBHUBBUB_HUB);
4106
4107                         $pubsub_result = $p->publish_update($rss_link);
4108                 }
4109         }
4110
4111         function catchupArticlesById($link, $ids, $cmode, $owner_uid = false) {
4112
4113                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4114                 if (count($ids) == 0) return;
4115
4116                 $tmp_ids = array();
4117
4118                 foreach ($ids as $id) {
4119                         array_push($tmp_ids, "ref_id = '$id'");
4120                 }
4121
4122                 $ids_qpart = join(" OR ", $tmp_ids);
4123
4124                 if ($cmode == 0) {
4125                         db_query($link, "UPDATE ttrss_user_entries SET
4126                         unread = false,last_read = NOW()
4127                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4128                 } else if ($cmode == 1) {
4129                         db_query($link, "UPDATE ttrss_user_entries SET
4130                         unread = true
4131                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4132                 } else {
4133                         db_query($link, "UPDATE ttrss_user_entries SET
4134                         unread = NOT unread,last_read = NOW()
4135                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4136                 }
4137
4138                 /* update ccache */
4139
4140                 $result = db_query($link, "SELECT DISTINCT feed_id FROM ttrss_user_entries
4141                         WHERE ($ids_qpart) AND owner_uid = $owner_uid");
4142
4143                 while ($line = db_fetch_assoc($result)) {
4144                         ccache_update($link, $line["feed_id"], $owner_uid);
4145                 }
4146         }
4147
4148         function catchupArticleById($link, $id, $cmode) {
4149
4150                 if ($cmode == 0) {
4151                         db_query($link, "UPDATE ttrss_user_entries SET
4152                         unread = false,last_read = NOW()
4153                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4154                 } else if ($cmode == 1) {
4155                         db_query($link, "UPDATE ttrss_user_entries SET
4156                         unread = true
4157                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4158                 } else {
4159                         db_query($link, "UPDATE ttrss_user_entries SET
4160                         unread = NOT unread,last_read = NOW()
4161                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4162                 }
4163
4164                 $feed_id = getArticleFeed($link, $id);
4165                 ccache_update($link, $feed_id, $_SESSION["uid"]);
4166         }
4167
4168         function make_guid_from_title($title) {
4169                 return preg_replace("/[ \"\',.:;]/", "-",
4170                         mb_strtolower(strip_tags($title), 'utf-8'));
4171         }
4172
4173         function format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4174                         $feed_id, $is_cat, $search, $match_on,
4175                         $search_mode, $view_mode, $error) {
4176
4177                 $page_prev_link = "viewFeedGoPage(-1)";
4178                 $page_next_link = "viewFeedGoPage(1)";
4179                 $page_first_link = "viewFeedGoPage(0)";
4180
4181                 $catchup_page_link = "catchupPage()";
4182                 $catchup_feed_link = "catchupCurrentFeed()";
4183                 $catchup_sel_link = "catchupSelection()";
4184
4185                 $archive_sel_link = "archiveSelection()";
4186                 $delete_sel_link = "deleteSelection()";
4187
4188                 $sel_all_link = "selectArticles('all')";
4189                 $sel_unread_link = "selectArticles('unread')";
4190                 $sel_none_link = "selectArticles('none')";
4191                 $sel_inv_link = "selectArticles('invert')";
4192
4193                 $tog_unread_link = "selectionToggleUnread()";
4194                 $tog_marked_link = "selectionToggleMarked()";
4195                 $tog_published_link = "selectionTogglePublished()";
4196
4197                 $reply = "<div id=\"subtoolbar_main\">";
4198
4199                 $reply .= __('Select:')."
4200                         <a href=\"#\" onclick=\"$sel_all_link\">".__('All')."</a>,
4201                         <a href=\"#\" onclick=\"$sel_unread_link\">".__('Unread')."</a>,
4202                         <a href=\"#\" onclick=\"$sel_inv_link\">".__('Invert')."</a>,
4203                         <a href=\"#\" onclick=\"$sel_none_link\">".__('None')."</a></li>";
4204
4205                 $reply .= " ";
4206
4207                 $reply .= "<select dojoType=\"dijit.form.Select\"
4208                         onchange=\"headlineActionsChange(this)\">";
4209                 $reply .= "<option value=\"false\">".__('Actions...')."</option>";
4210
4211                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection toggle:')."</option>";
4212
4213                 $reply .= "<option value=\"$tog_unread_link\">".__('Unread')."</option>
4214                         <option value=\"$tog_marked_link\">".__('Starred')."</option>
4215                         <option value=\"$tog_published_link\">".__('Published')."</option>";
4216
4217                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Selection:')."</option>";
4218
4219                 $reply .= "<option value=\"$catchup_sel_link\">".__('Mark as read')."</option>";
4220
4221                 if ($feed_id != "0") {
4222                         $reply .= "<option value=\"$archive_sel_link\">".__('Archive')."</option>";
4223                 } else {
4224                         $reply .= "<option value=\"$archive_sel_link\">".__('Move back')."</option>";
4225                         $reply .= "<option value=\"$delete_sel_link\">".__('Delete')."</option>";
4226
4227                 }
4228
4229                 $reply .= "<option value=\"emailArticle(false)\">".__('Forward by email').
4230                         "</option>";
4231
4232                 if ($is_cat) $cat_q = "&is_cat=$is_cat";
4233
4234                 $rss_link = htmlspecialchars(get_self_url_prefix() .
4235                         "/backend.php?op=rss&id=$feed_id$cat_q$search_q");
4236
4237                 $reply .= "<option value=\"0\" disabled=\"1\">".__('Feed:')."</option>";
4238
4239                 $reply .= "<option value=\"catchupPage()\">".__('Mark as read')."</option>";
4240
4241                 $reply .= "<option value=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">".__('View as RSS')."</option>";
4242
4243                 $reply .= "</select>";
4244
4245                 $reply .= "</div>";
4246
4247                 $reply .= "<div id=\"subtoolbar_ftitle\">";
4248
4249                 if ($feed_site_url) {
4250                         $target = "target=\"_blank\"";
4251                         $reply .= "<a title=\"".__("Visit the website")."\" $target href=\"$feed_site_url\">".
4252                                 truncate_string($feed_title,30)."</a>";
4253
4254                         if ($error) {
4255                                 $reply .= " (<span class=\"error\" title=\"$error\">Error</span>)";
4256                         }
4257
4258                 } else {
4259                         if ($feed_id < -10) {
4260                                 $label_id = -11-$feed_id;
4261
4262                                 $result = db_query($link, "SELECT fg_color, bg_color
4263                                         FROM ttrss_labels2 WHERE id = '$label_id' AND owner_uid = " .
4264                                         $_SESSION["uid"]);
4265
4266                                 if (db_num_rows($result) != 0) {
4267                                         $fg_color = db_fetch_result($result, 0, "fg_color");
4268                                         $bg_color = db_fetch_result($result, 0, "bg_color");
4269
4270                                         $reply .= "<span style='background : $bg_color; color : $fg_color'>";
4271                                         $reply .= $feed_title;
4272                                         $reply .= "</span>";
4273                                 } else {
4274                                         $reply .= $feed_title;
4275                                 }
4276
4277                         } else {
4278                                 $reply .= $feed_title;
4279                         }
4280                 }
4281
4282                 if ($search) {
4283                         $search_q = "&q=$search&m=$match_on&smode=$search_mode";
4284                 } else {
4285                         $search_q = "";
4286                 }
4287
4288                 $reply .= "
4289                         <a href=\"#\"
4290                                 title=\"".__("View as RSS feed")."\"
4291                                 onclick=\"displayDlg('generatedFeed', '$feed_id:$is_cat:$rss_link')\">
4292                                 <img class=\"noborder\" style=\"vertical-align : middle\" src=\"images/feed-icon-12x12.png\"></a>";
4293
4294                 $reply .= "</div>";
4295
4296                 return $reply;
4297         }
4298
4299         function outputFeedList($link, $special = true) {
4300
4301                 $feedlist = array();
4302
4303                 $enable_cats = get_pref($link, 'ENABLE_FEED_CATS');
4304
4305                 $feedlist['identifier'] = 'id';
4306                 $feedlist['label'] = 'name';
4307                 $feedlist['items'] = array();
4308
4309                 $owner_uid = $_SESSION["uid"];
4310
4311                 /* virtual feeds */
4312
4313                 if ($special) {
4314
4315                         if ($enable_cats) {
4316                                 $cat_hidden = get_pref($link, "_COLLAPSED_SPECIAL");
4317                                 $cat = feedlist_init_cat($link, -1, $cat_hidden);
4318                         } else {
4319                                 $cat['items'] = array();
4320                         }
4321
4322                         foreach (array(-4, -3, -1, -2, 0) as $i) {
4323                                 array_push($cat['items'], feedlist_init_feed($link, $i));
4324                         }
4325
4326                         if ($enable_cats) {
4327                                 array_push($feedlist['items'], $cat);
4328                         } else {
4329                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4330                         }
4331
4332                         $result = db_query($link, "SELECT * FROM
4333                                 ttrss_labels2 WHERE owner_uid = '$owner_uid' ORDER by caption");
4334
4335                         if (db_num_rows($result) > 0) {
4336
4337                                 if (get_pref($link, 'ENABLE_FEED_CATS')) {
4338                                         $cat_hidden = get_pref($link, "_COLLAPSED_LABELS");
4339                                         $cat = feedlist_init_cat($link, -2, $cat_hidden);
4340                                 } else {
4341                                         $cat['items'] = array();
4342                                 }
4343
4344                                 while ($line = db_fetch_assoc($result)) {
4345
4346                                         $label_id = -$line['id'] - 11;
4347                                         $count = getFeedUnread($link, $label_id);
4348
4349                                         $feed = feedlist_init_feed($link, $label_id, false, $count);
4350
4351                                         $feed['fg_color'] = $line['fg_color'];
4352                                         $feed['bg_color'] = $line['bg_color'];
4353
4354                                         array_push($cat['items'], $feed);
4355                                 }
4356
4357                                 if ($enable_cats) {
4358                                         array_push($feedlist['items'], $cat);
4359                                 } else {
4360                                         $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4361                                 }
4362                         }
4363                 }
4364
4365 /*              if (get_pref($link, 'ENABLE_FEED_CATS')) {
4366                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4367                                 $order_by_qpart = "order_id,category,unread DESC,title";
4368                         } else {
4369                                 $order_by_qpart = "order_id,category,title";
4370                         }
4371                 } else {
4372                         if (get_pref($link, "FEEDS_SORT_BY_UNREAD")) {
4373                                 $order_by_qpart = "unread DESC,title";
4374                         } else {
4375                                 $order_by_qpart = "title";
4376                         }
4377                 } */
4378
4379                 /* real feeds */
4380
4381                 if ($enable_cats)
4382                         $order_by_qpart = "ttrss_feed_categories.order_id,category,
4383                                 ttrss_feeds.order_id,title";
4384                 else
4385                         $order_by_qpart = "title";
4386
4387                 $age_qpart = getMaxAgeSubquery();
4388
4389                 $query = "SELECT ttrss_feeds.id, ttrss_feeds.title,
4390                         ".SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated_noms,
4391                         cat_id,last_error,
4392                         ttrss_feed_categories.title AS category,
4393                         ttrss_feed_categories.collapsed,
4394                         value AS unread
4395                         FROM ttrss_feeds LEFT JOIN ttrss_feed_categories
4396                                 ON (ttrss_feed_categories.id = cat_id)
4397                         LEFT JOIN ttrss_counters_cache
4398                                 ON
4399                                         (ttrss_feeds.id = feed_id)
4400                         WHERE
4401                                 ttrss_feeds.owner_uid = '$owner_uid'
4402                         ORDER BY $order_by_qpart";
4403
4404                 $result = db_query($link, $query);
4405
4406                 $actid = $_REQUEST["actid"];
4407
4408                 if (db_num_rows($result) > 0) {
4409
4410                         $category = "";
4411
4412                         if (!$enable_cats)
4413                                 $cat['items'] = array();
4414                         else
4415                                 $cat = false;
4416
4417                         while ($line = db_fetch_assoc($result)) {
4418
4419                                 $feed = htmlspecialchars(trim($line["title"]));
4420
4421                                 if (!$feed) $feed = "[Untitled]";
4422
4423                                 $feed_id = $line["id"];
4424                                 $unread = $line["unread"];
4425
4426                                 $cat_id = $line["cat_id"];
4427                                 $tmp_category = $line["category"];
4428                                 if (!$tmp_category) $tmp_category = __("Uncategorized");
4429
4430                                 if ($category != $tmp_category && $enable_cats) {
4431
4432                                         $category = $tmp_category;
4433
4434                                         $collapsed = sql_bool_to_bool($line["collapsed"]);
4435
4436                                         // workaround for NULL category
4437                                         if ($category == __("Uncategorized")) {
4438                                                 $collapsed = get_pref($link, "_COLLAPSED_UNCAT");
4439                                         }
4440
4441                                         if ($cat) array_push($feedlist['items'], $cat);
4442
4443                                         $cat = feedlist_init_cat($link, $cat_id, $collapsed);
4444                                 }
4445
4446                                 $updated = make_local_datetime($link, $line["updated_noms"], false);
4447
4448                                 array_push($cat['items'], feedlist_init_feed($link, $feed_id,
4449                                         $feed, $unread, $line['last_error'], $updated));
4450                         }
4451
4452                         if ($enable_cats) {
4453                                 array_push($feedlist['items'], $cat);
4454                         } else {
4455                                 $feedlist['items'] = array_merge($feedlist['items'], $cat['items']);
4456                         }
4457
4458                 }
4459
4460                 return $feedlist;
4461         }
4462
4463         function get_article_tags($link, $id, $owner_uid = 0) {
4464
4465                 global $memcache;
4466
4467                 $a_id = db_escape_string($id);
4468
4469                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
4470
4471                 $query = "SELECT DISTINCT tag_name,
4472                         owner_uid as owner FROM
4473                         ttrss_tags WHERE post_int_id = (SELECT int_id FROM ttrss_user_entries WHERE
4474                         ref_id = '$a_id' AND owner_uid = '$owner_uid' LIMIT 1) ORDER BY tag_name";
4475
4476                 $obj_id = md5("TAGS:$owner_uid:$id");
4477                 $tags = array();
4478
4479                 if ($memcache && $obj = $memcache->get($obj_id)) {
4480                         $tags = $obj;
4481                 } else {
4482                         /* check cache first */
4483
4484                         $result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
4485                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4486
4487                         $tag_cache = db_fetch_result($result, 0, "tag_cache");
4488
4489                         if ($tag_cache) {
4490                                 $tags = explode(",", $tag_cache);
4491                         } else {
4492
4493                                 /* do it the hard way */
4494
4495                                 $tmp_result = db_query($link, $query);
4496
4497                                 while ($tmp_line = db_fetch_assoc($tmp_result)) {
4498                                         array_push($tags, $tmp_line["tag_name"]);
4499                                 }
4500
4501                                 /* update the cache */
4502
4503                                 $tags_str = db_escape_string(join(",", $tags));
4504
4505                                 db_query($link, "UPDATE ttrss_user_entries
4506                                         SET tag_cache = '$tags_str' WHERE ref_id = '$id'
4507                                         AND owner_uid = " . $_SESSION["uid"]);
4508                         }
4509
4510                         if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);
4511                 }
4512
4513                 return $tags;
4514         }
4515
4516         function trim_value(&$value) {
4517                 $value = trim($value);
4518         }
4519
4520         function trim_array($array) {
4521                 $tmp = $array;
4522                 array_walk($tmp, 'trim_value');
4523                 return $tmp;
4524         }
4525
4526         function tag_is_valid($tag) {
4527                 if ($tag == '') return false;
4528                 if (preg_match("/^[0-9]*$/", $tag)) return false;
4529                 if (mb_strlen($tag) > 250) return false;
4530
4531                 if (function_exists('iconv')) {
4532                         $tag = iconv("utf-8", "utf-8", $tag);
4533                 }
4534
4535                 if (!$tag) return false;
4536
4537                 return true;
4538         }
4539
4540         function render_login_form($link, $mobile = 0) {
4541                 switch ($mobile) {
4542                 case 0:
4543                         require_once "login_form.php";
4544                         break;
4545                 case 1:
4546                         require_once "mobile/login_form.php";
4547                         break;
4548                 case 2:
4549                         require_once "mobile/classic/login_form.php";
4550                 }
4551         }
4552
4553         // from http://developer.apple.com/internet/safari/faq.html
4554         function no_cache_incantation() {
4555                 header("Expires: Mon, 22 Dec 1980 00:00:00 GMT"); // Happy birthday to me :)
4556                 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
4557                 header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
4558                 header("Cache-Control: post-check=0, pre-check=0", false);
4559                 header("Pragma: no-cache"); // HTTP/1.0
4560         }
4561
4562         function format_warning($msg, $id = "") {
4563                 global $link;
4564                 return "<div class=\"warning\" id=\"$id\">
4565                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4566         }
4567
4568         function format_notice($msg, $id = "") {
4569                 global $link;
4570                 return "<div class=\"notice\" id=\"$id\">
4571                         <img src=\"".theme_image($link, "images/sign_info.png")."\">$msg</div>";
4572         }
4573
4574         function format_error($msg, $id = "") {
4575                 global $link;
4576                 return "<div class=\"error\" id=\"$id\">
4577                         <img src=\"".theme_image($link, "images/sign_excl.png")."\">$msg</div>";
4578         }
4579
4580         function print_notice($msg) {
4581                 return print format_notice($msg);
4582         }
4583
4584         function print_warning($msg) {
4585                 return print format_warning($msg);
4586         }
4587
4588         function print_error($msg) {
4589                 return print format_error($msg);
4590         }
4591
4592
4593         function T_sprintf() {
4594                 $args = func_get_args();
4595                 return vsprintf(__(array_shift($args)), $args);
4596         }
4597
4598         function format_inline_player($link, $url, $ctype) {
4599
4600                 $entry = "";
4601
4602                 if (strpos($ctype, "audio/") === 0) {
4603
4604                         if ($_SESSION["hasAudio"] && (strpos($ctype, "ogg") !== false ||
4605                                 strpos($_SERVER['HTTP_USER_AGENT'], "Chrome") !== false ||
4606                                 strpos($_SERVER['HTTP_USER_AGENT'], "Safari") !== false )) {
4607
4608                                 $id = 'AUDIO-' . uniqid();
4609
4610                                 $entry .= "<audio id=\"$id\"\">
4611                                         <source src=\"$url\"></source>
4612                                         </audio>";
4613
4614                                 $entry .= "<span onclick=\"player(this)\"
4615                                         title=\"".__("Click to play")."\" status=\"0\"
4616                                         class=\"player\" audio-id=\"$id\">".__("Play")."</span>";
4617
4618                         } else {
4619
4620                                 $entry .= "<object type=\"application/x-shockwave-flash\"
4621                                         data=\"extras/button/musicplayer.swf?song_url=$url\"
4622                                         width=\"17\" height=\"17\" style='float : left; margin-right : 5px;'>
4623                                         <param name=\"movie\"
4624                                                 value=\"extras/button/musicplayer.swf?song_url=$url\" />
4625                                         </object>";
4626                         }
4627                 }
4628
4629                 $filename = substr($url, strrpos($url, "/")+1);
4630
4631                 $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
4632                         $filename . " (" . $ctype . ")" . "</a>";
4633
4634                 return $entry;
4635         }
4636
4637         function format_article($link, $id, $feed_id, $mark_as_read = true,
4638                 $zoom_mode = false) {
4639
4640                 $rv = array();
4641
4642                 $rv['id'] = $id;
4643
4644                 /* we can figure out feed_id from article id anyway, why do we
4645                  * pass feed_id here? let's ignore the argument :( */
4646
4647                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
4648                         WHERE ref_id = '$id'");
4649
4650                 $feed_id = (int) db_fetch_result($result, 0, "feed_id");
4651
4652                 $rv['feed_id'] = $feed_id;
4653
4654                 //if (!$zoom_mode) { print "<article id='$id'><![CDATA["; };
4655
4656                 $result = db_query($link, "SELECT rtl_content, always_display_enclosures FROM ttrss_feeds
4657                         WHERE id = '$feed_id' AND owner_uid = " . $_SESSION["uid"]);
4658
4659                 if (db_num_rows($result) == 1) {
4660                         $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4661                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($result, 0, "always_display_enclosures"));
4662                 } else {
4663                         $rtl_content = false;
4664                         $always_display_enclosures = false;
4665                 }
4666
4667                 if ($rtl_content) {
4668                         $rtl_tag = "dir=\"RTL\"";
4669                         $rtl_class = "RTL";
4670                 } else {
4671                         $rtl_tag = "";
4672                         $rtl_class = "";
4673                 }
4674
4675                 if ($mark_as_read) {
4676                         $result = db_query($link, "UPDATE ttrss_user_entries
4677                                 SET unread = false,last_read = NOW()
4678                                 WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
4679
4680                         ccache_update($link, $feed_id, $_SESSION["uid"]);
4681                 }
4682
4683                 $result = db_query($link, "SELECT title,link,content,feed_id,comments,int_id,
4684                         ".SUBSTRING_FOR_DATE."(updated,1,16) as updated,
4685                         (SELECT icon_url FROM ttrss_feeds WHERE id = feed_id) as icon_url,
4686                         (SELECT site_url FROM ttrss_feeds WHERE id = feed_id) as site_url,
4687                         num_comments,
4688                         author,
4689                         orig_feed_id,
4690                         note
4691                         FROM ttrss_entries,ttrss_user_entries
4692                         WHERE   id = '$id' AND ref_id = id AND owner_uid = " . $_SESSION["uid"]);
4693
4694                 if ($result) {
4695
4696                         $line = db_fetch_assoc($result);
4697
4698                         if ($line["icon_url"]) {
4699                                 $feed_icon = "<img src=\"" . $line["icon_url"] . "\">";
4700                         } else {
4701                                 $feed_icon = "&nbsp;";
4702                         }
4703
4704                         $feed_site_url = $line['site_url'];
4705
4706                         $num_comments = $line["num_comments"];
4707                         $entry_comments = "";
4708
4709                         if ($num_comments > 0) {
4710                                 if ($line["comments"]) {
4711                                         $comments_url = $line["comments"];
4712                                 } else {
4713                                         $comments_url = $line["link"];
4714                                 }
4715                                 $entry_comments = "<a target='_blank' href=\"$comments_url\">$num_comments comments</a>";
4716                         } else {
4717                                 if ($line["comments"] && $line["link"] != $line["comments"]) {
4718                                         $entry_comments = "<a target='_blank' href=\"".$line["comments"]."\">comments</a>";
4719                                 }
4720                         }
4721
4722                         if ($zoom_mode) {
4723                                 header("Content-Type: text/html");
4724                                 $rv['content'] .= "<html><head>
4725                                                 <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
4726                                                 <title>Tiny Tiny RSS - ".$line["title"]."</title>
4727                                                 <link rel=\"stylesheet\" type=\"text/css\" href=\"tt-rss.css\">
4728                                         </head><body>";
4729                         }
4730
4731                         $rv['content'] .= "<div id=\"PTITLE-$id\" style=\"display : none\">" .
4732                                 truncate_string(strip_tags($line['title']), 15) . "</div>";
4733
4734                         $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">";
4735
4736                         $rv['content'] .= "<div onclick=\"return postClicked(event, $id)\"
4737                                 class=\"postHeader\" id=\"POSTHDR-$id\">";
4738
4739                         $entry_author = $line["author"];
4740
4741                         if ($entry_author) {
4742                                 $entry_author = __(" - ") . $entry_author;
4743                         }
4744
4745                         $parsed_updated = make_local_datetime($link, $line["updated"], true,
4746                                 false, true);
4747
4748                         $rv['content'] .= "<div class=\"postDate$rtl_class\">$parsed_updated</div>";
4749
4750                         if ($line["link"]) {
4751                                 $rv['content'] .= "<div clear='both'><a target='_blank'
4752                                         title=\"".htmlspecialchars($line['title'])."\"
4753                                         href=\"" .
4754                                         $line["link"] . "\">" .
4755                                         truncate_string($line["title"], 100) .
4756                                         "<span class='author'>$entry_author</span></a></div>";
4757                         } else {
4758                                 $rv['content'] .= "<div clear='both'>" . $line["title"] . "$entry_author</div>";
4759                         }
4760
4761                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
4762
4763                         if (!$entry_comments) $entry_comments = "&nbsp;"; # placeholder
4764
4765                         $rv['content'] .= "<div style='float : right'>
4766                                 <img src='".theme_image($link, 'images/tag.png')."'
4767                                 class='tagsPic' alt='Tags' title='Tags'>&nbsp;";
4768
4769                         if (!$zoom_mode) {
4770                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>
4771                                         <a title=\"".__('Edit tags for this article')."\"
4772                                         href=\"#\" onclick=\"editArticleTags($id, $feed_id)\">(+)</a>";
4773
4774                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-zoom.png')."\"
4775                                                 class='tagsPic' style=\"cursor : pointer\"
4776                                                 onclick=\"postOpenInNewTab(event, $id)\"
4777                                                 alt='Zoom' title='".__('Open article in new tab')."'>";
4778
4779                                 //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
4780
4781                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-pub-note.png')."\"
4782                                                 class='tagsPic' style=\"cursor : pointer\"
4783                                                 onclick=\"editArticleNote($id)\"
4784                                                 alt='PubNote' title='".__('Edit article note')."'>";
4785
4786                                 if (DIGEST_ENABLE) {
4787                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
4788                                                 class='tagsPic' style=\"cursor : pointer\"
4789                                                 onclick=\"emailArticle($id)\"
4790                                                 alt='Zoom' title='".__('Forward by email')."'>";
4791                                 }
4792
4793                                 if (ENABLE_TWEET_BUTTON) {
4794                                         $rv['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
4795                                                         class='tagsPic' style=\"cursor : pointer\"
4796                                                         onclick=\"tweetArticle($id)\"
4797                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
4798                                 }
4799
4800                                 $rv['content'] .= "<img src=\"".theme_image($link, 'images/digest_checkbox.png')."\"
4801                                                 class='tagsPic' style=\"cursor : pointer\"
4802                                                 onclick=\"closeArticlePanel($id)\"
4803                                                 alt='Zoom' title='".__('Close this panel')."'>";
4804
4805                         } else {
4806                                 $tags_str = strip_tags($tags_str);
4807                                 $rv['content'] .= "<span id=\"ATSTR-$id\">$tags_str</span>";
4808                         }
4809                         $rv['content'] .= "</div>";
4810                         $rv['content'] .= "<div clear='both'>$entry_comments</div>";
4811
4812                         if ($line["orig_feed_id"]) {
4813
4814                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
4815                                         WHERE id = ".$line["orig_feed_id"]);
4816
4817                                 if (db_num_rows($tmp_result) != 0) {
4818
4819                                         $rv['content'] .= "<div clear='both'>";
4820                                         $rv['content'] .= __("Originally from:");
4821
4822                                         $rv['content'] .= "&nbsp;";
4823
4824                                         $tmp_line = db_fetch_assoc($tmp_result);
4825
4826                                         $rv['content'] .= "<a target='_blank'
4827                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
4828                                                 $tmp_line['title'] . "</a>";
4829
4830                                         $rv['content'] .= "&nbsp;";
4831
4832                                         $rv['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
4833                                         $rv['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
4834
4835                                         $rv['content'] .= "</div>";
4836                                 }
4837                         }
4838
4839                         $rv['content'] .= "</div>";
4840
4841                         $rv['content'] .= "<div class=\"postIcon\">" .
4842                                 "<a target=\"_blank\" title=\"".__("Visit the website")."\"$
4843                                 href=\"".htmlspecialchars($feed_site_url)."\">".
4844                                 $feed_icon . "</a></div>";
4845
4846                         $rv['content'] .= "<div id=\"POSTNOTE-$id\">";
4847                                 if ($line['note']) {
4848                                         $rv['content'] .= format_article_note($id, $line['note']);
4849                                 }
4850                         $rv['content'] .= "</div>";
4851
4852                         $rv['content'] .= "<div class=\"postContent\">";
4853
4854                         $article_content = sanitize_rss($link, $line["content"], false, false,
4855                                 $feed_site_url);
4856
4857                         $rv['content'] .= $article_content;
4858
4859                         $rv['content'] .= format_article_enclosures($link, $id,
4860                                 $always_display_enclosures, $article_content);
4861
4862                         $rv['content'] .= "</div>";
4863
4864                         $rv['content'] .= "</div>";
4865
4866                 }
4867
4868                 if ($zoom_mode) {
4869                         $rv['content'] .= "
4870                                 <div style=\"text-align : center\">
4871                                 <button onclick=\"return window.close()\">".
4872                                         __("Close this window")."</button></div>";
4873                         $rv['content'] .= "</body></html>";
4874                 }
4875
4876                 return $rv;
4877
4878         }
4879
4880         function format_headlines_list($link, $feed, $subop, $view_mode, $limit, $cat_view,
4881                                         $next_unread_feed, $offset, $vgr_last_feed = false,
4882                                         $override_order = false) {
4883
4884                 $disable_cache = false;
4885
4886                 $reply = array();
4887
4888                 $timing_info = getmicrotime();
4889
4890                 $topmost_article_ids = array();
4891
4892                 if (!$offset) {
4893                         $offset = 0;
4894                 }
4895
4896                 if ($subop == "undefined") $subop = "";
4897
4898                 $subop_split = split(":", $subop);
4899
4900                 if ($subop == "CatchupSelected") {
4901                         $ids = split(",", db_escape_string($_REQUEST["ids"]));
4902                         $cmode = sprintf("%d", $_REQUEST["cmode"]);
4903
4904                         catchupArticlesById($link, $ids, $cmode);
4905                 }
4906
4907                 if ($subop == "ForceUpdate" && sprintf("%d", $feed) > 0) {
4908                         update_rss_feed($link, $feed, true);
4909                 }
4910
4911                 if ($subop == "MarkAllRead")  {
4912                         catchup_feed($link, $feed, $cat_view);
4913
4914                         if (get_pref($link, 'ON_CATCHUP_SHOW_NEXT_FEED')) {
4915                                 if ($next_unread_feed) {
4916                                         $feed = $next_unread_feed;
4917                                 }
4918                         }
4919                 }
4920
4921                 if ($subop_split[0] == "MarkAllReadGR")  {
4922                         catchup_feed($link, $subop_split[1], false);
4923                 }
4924
4925                 // FIXME: might break tag display?
4926
4927                 if ($feed > 0 && !$cat_view) {
4928                         $result = db_query($link,
4929                                 "SELECT id FROM ttrss_feeds WHERE id = '$feed' LIMIT 1");
4930
4931                         if (db_num_rows($result) == 0) {
4932                                 $reply['content'] = "<div align='center'>".__('Feed not found.')."</div>";
4933                         }
4934                 }
4935
4936                 if (preg_match("/^-?[0-9][0-9]*$/", $feed) != false) {
4937
4938                         $result = db_query($link, "SELECT rtl_content FROM ttrss_feeds
4939                                 WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
4940
4941                         if (db_num_rows($result) == 1) {
4942                                 $rtl_content = sql_bool_to_bool(db_fetch_result($result, 0, "rtl_content"));
4943                         } else {
4944                                 $rtl_content = false;
4945                         }
4946
4947                         if ($rtl_content) {
4948                                 $rtl_tag = "dir=\"RTL\"";
4949                         } else {
4950                                 $rtl_tag = "";
4951                         }
4952                 } else {
4953                         $rtl_tag = "";
4954                         $rtl_content = false;
4955                 }
4956
4957                 /// START /////////////////////////////////////////////////////////////////////////////////
4958
4959                 @$search = db_escape_string($_REQUEST["query"]);
4960
4961                 if ($search) {
4962                         $disable_cache = true;
4963                 }
4964
4965                 @$search_mode = db_escape_string($_REQUEST["search_mode"]);
4966                 @$match_on = db_escape_string($_REQUEST["match_on"]);
4967
4968                 if (!$match_on) {
4969                         $match_on = "both";
4970                 }
4971
4972                 $real_offset = $offset * $limit;
4973
4974                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H0", $timing_info);
4975
4976                 $qfh_ret = queryFeedHeadlines($link, $feed, $limit, $view_mode, $cat_view,
4977                         $search, $search_mode, $match_on, $override_order, $real_offset);
4978
4979                 if ($_REQUEST["debug"]) $timing_info = print_checkpoint("H1", $timing_info);
4980
4981                 $result = $qfh_ret[0];
4982                 $feed_title = $qfh_ret[1];
4983                 $feed_site_url = $qfh_ret[2];
4984                 $last_error = $qfh_ret[3];
4985
4986                 $vgroup_last_feed = $vgr_last_feed;
4987
4988                 /// STOP //////////////////////////////////////////////////////////////////////////////////
4989
4990                 if (!$offset) {
4991
4992                         if (db_num_rows($result) > 0) {
4993                                 $reply['toolbar'] = format_headline_subtoolbar($link, $feed_site_url, $feed_title,
4994                                         $feed, $cat_view, $search, $match_on, $search_mode, $view_mode,
4995                                         $last_error);
4996                         }
4997                 }
4998
4999                 $headlines_count = db_num_rows($result);
5000
5001                 if (db_num_rows($result) > 0) {
5002
5003                         $lnum = $limit*$offset;
5004
5005                         $num_unread = 0;
5006                         $cur_feed_title = '';
5007
5008                         $fresh_intl = get_pref($link, "FRESH_ARTICLE_MAX_AGE") * 60 * 60;
5009
5010                         while ($line = db_fetch_assoc($result)) {
5011
5012                                 $class = ($lnum % 2) ? "even" : "odd";
5013
5014                                 $id = $line["id"];
5015                                 $feed_id = $line["feed_id"];
5016
5017                                 $labels = get_article_labels($link, $id);
5018
5019                                 $labels_str = "<span id=\"HLLCTR-$id\">";
5020                                 $labels_str .= format_article_labels($labels, $id);
5021                                 $labels_str .= "</span>";
5022
5023                                 if (count($topmost_article_ids) < 3) {
5024                                         array_push($topmost_article_ids, $id);
5025                                 }
5026
5027                                 if ($line["last_read"] == "" && !sql_bool_to_bool($line["unread"])) {
5028
5029                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5030                                                 theme_image($link, 'images/updated.png')."\"
5031                                                 alt=\"Updated\">";
5032                                 } else {
5033                                         $update_pic = "<img id='FUPDPIC-$id' src=\"images/blank_icon.gif\"
5034                                                 alt=\"Updated\">";
5035                                 }
5036
5037                                 if (sql_bool_to_bool($line["unread"]) &&
5038                                         time() - strtotime($line["updated_noms"]) < $fresh_intl) {
5039
5040                                         $update_pic = "<img id='FUPDPIC-$id' src=\"".
5041                                                 theme_image($link, 'images/fresh_sign.png')."\" alt=\"Fresh\">";
5042                                 }
5043
5044                                 if ($line["unread"] == "t" || $line["unread"] == "1") {
5045                                         $class .= " Unread";
5046                                         ++$num_unread;
5047                                         $is_unread = true;
5048                                 } else {
5049                                         $is_unread = false;
5050                                 }
5051
5052                                 if ($line["marked"] == "t" || $line["marked"] == "1") {
5053                                         $marked_pic = "<img id=\"FMPIC-$id\"
5054                                                 src=\"".theme_image($link, 'images/mark_set.png')."\"
5055                                                 class=\"markedPic\" alt=\"Unstar article\"
5056                                                 onclick='javascript:tMark($id)'>";
5057                                 } else {
5058                                         $marked_pic = "<img id=\"FMPIC-$id\"
5059                                                 src=\"".theme_image($link, 'images/mark_unset.png')."\"
5060                                                 class=\"markedPic\" alt=\"Star article\"
5061                                                 onclick='javascript:tMark($id)'>";
5062                                 }
5063
5064                                 if ($line["published"] == "t" || $line["published"] == "1") {
5065                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5066                                                 'images/pub_set.png')."\"
5067                                                 class=\"markedPic\"
5068                                                 alt=\"Unpublish article\" onclick='javascript:tPub($id)'>";
5069                                 } else {
5070                                         $published_pic = "<img id=\"FPPIC-$id\" src=\"".theme_image($link,
5071                                                 'images/pub_unset.png')."\"
5072                                                 class=\"markedPic\"
5073                                                 alt=\"Publish article\" onclick='javascript:tPub($id)'>";
5074                                 }
5075
5076 #                               $content_link = "<a target=\"_blank\" href=\"".$line["link"]."\">" .
5077 #                                       $line["title"] . "</a>";
5078
5079 #                               $content_link = "<a
5080 #                                       href=\"" . htmlspecialchars($line["link"]) . "\"
5081 #                                       onclick=\"view($id,$feed_id);\">" .
5082 #                                       $line["title"] . "</a>";
5083
5084 #                               $content_link = "<a href=\"javascript:viewContentUrl('".$line["link"]."');\">" .
5085 #                                       $line["title"] . "</a>";
5086
5087                                 $updated_fmt = make_local_datetime($link, $line["updated_noms"], false);
5088
5089                                 if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5090                                         $content_preview = truncate_string(strip_tags($line["content_preview"]),
5091                                                 100);
5092                                 }
5093
5094                                 $score = $line["score"];
5095
5096                                 $score_pic = theme_image($link,
5097                                         "images/" . get_score_pic($score));
5098
5099 /*                              $score_title = __("(Click to change)");
5100                                 $score_pic = "<img class='hlScorePic' src=\"images/$score_pic\"
5101                                         onclick=\"adjustArticleScore($id, $score)\" title=\"$score $score_title\">"; */
5102
5103                                 $score_pic = "<img class='hlScorePic' src=\"$score_pic\"
5104                                         title=\"$score\">";
5105
5106                                 if ($score > 500) {
5107                                         $hlc_suffix = "H";
5108                                 } else if ($score < -100) {
5109                                         $hlc_suffix = "L";
5110                                 } else {
5111                                         $hlc_suffix = "";
5112                                 }
5113
5114                                 $entry_author = $line["author"];
5115
5116                                 if ($entry_author) {
5117                                         $entry_author = " - $entry_author";
5118                                 }
5119
5120                                 $has_feed_icon = feed_has_icon($feed_id);
5121
5122                                 if ($has_feed_icon) {
5123                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5124                                 } else {
5125                                         $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/feed-icon-12x12.png\" alt=\"\">";
5126                                 }
5127
5128                                 if (!get_pref($link, 'COMBINED_DISPLAY_MODE')) {
5129
5130                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5131                                                 if ($feed_id != $vgroup_last_feed && $line["feed_title"]) {
5132
5133                                                         $cur_feed_title = $line["feed_title"];
5134                                                         $vgroup_last_feed = $feed_id;
5135
5136                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5137
5138                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5139
5140                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5141                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5142                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5143                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5144
5145                                                 }
5146                                         }
5147
5148                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5149                                                 onmouseout='postMouseOut($id)'";
5150
5151                                         $reply['content'] .= "<div class='$class' id='RROW-$id' $mouseover_attrs>";
5152
5153                                         $reply['content'] .= "<div class='hlUpdPic'>$update_pic</div>";
5154
5155                                         $reply['content'] .= "<div class='hlLeft'>";
5156
5157                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"tSR(this)\"
5158                                                         id=\"RCHK-$id\">";
5159
5160                                         $reply['content'] .= "$marked_pic";
5161                                         $reply['content'] .= "$published_pic";
5162
5163                                         $reply['content'] .= "</div>";
5164
5165                                         $reply['content'] .= "<div onclick='return hlClicked(event, $id)'
5166                                                 class=\"hlTitle\"><span class='hlContent$hlc_suffix'>";
5167                                         $reply['content'] .= "<a id=\"RTITLE-$id\"
5168                                                 href=\"" . htmlspecialchars($line["link"]) . "\"
5169                                                 onclick=\"\">" .
5170                                                 $line["title"];
5171
5172                                         if (get_pref($link, 'SHOW_CONTENT_PREVIEW')) {
5173                                                 if ($content_preview) {
5174                                                         $reply['content'] .= "<span class=\"contentPreview\"> - $content_preview</span>";
5175                                                 }
5176                                         }
5177
5178                                         $reply['content'] .= "</a></span>";
5179
5180                                         $reply['content'] .= $labels_str;
5181
5182                                         /* if (!get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5183                                                 if (@$line["feed_title"]) {
5184                                                         print "<span class=\"hlFeed\">
5185                                                                 (<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5186                                                                 $line["feed_title"]."</a>)
5187                                                         </span>";
5188                                                 }
5189                                         } */
5190
5191                                         $reply['content'] .= "</div>";
5192
5193                                         $reply['content'] .= "<div class=\"hlRight\">";
5194                                         $reply['content'] .= "<span class=\"hlUpdated\">$updated_fmt</span>";
5195                                         $reply['content'] .= $score_pic;
5196
5197                                         if ($line["feed_title"] && !get_pref($link, 'VFEED_GROUP_BY_FEED')) {
5198
5199                                                 $reply['content'] .= "<span onclick=\"viewfeed($feed_id)\"
5200                                                         title=\"".htmlspecialchars($line['feed_title'])."\">
5201                                                         $feed_icon_img<span>";
5202                                         }
5203
5204                                         $reply['content'] .= "</div>";
5205                                         $reply['content'] .= "</div>";
5206
5207                                 } else {
5208
5209                                         if (get_pref($link, 'VFEED_GROUP_BY_FEED') && $line["feed_title"]) {
5210                                                 if ($feed_id != $vgroup_last_feed) {
5211
5212                                                         $cur_feed_title = $line["feed_title"];
5213                                                         $vgroup_last_feed = $feed_id;
5214
5215                                                         $cur_feed_title = htmlspecialchars($cur_feed_title);
5216
5217                                                         $vf_catchup_link = "(<a onclick='javascript:catchupFeedInGroup($feed_id);' href='#'>".__('mark as read')."</a>)";
5218
5219                                                         $has_feed_icon = feed_has_icon($feed_id);
5220
5221                                                         if ($has_feed_icon) {
5222                                                                 $feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"".ICONS_URL."/$feed_id.ico\" alt=\"\">";
5223                                                         } else {
5224                                                                 //$feed_icon_img = "<img class=\"tinyFeedIcon\" src=\"images/blank_icon.gif\" alt=\"\">";
5225                                                         }
5226
5227                                                         $reply['content'] .= "<div class='cdmFeedTitle'>".
5228                                                                 "<div style=\"float : right\">$feed_icon_img</div>".
5229                                                                 "<a href=\"#\" onclick=\"viewfeed($feed_id)\">".
5230                                                                 $line["feed_title"]."</a> $vf_catchup_link</div>";
5231                                                 }
5232                                         }
5233
5234                                         $expand_cdm = get_pref($link, 'CDM_EXPANDED');
5235
5236                                         $mouseover_attrs = "onmouseover='postMouseIn($id)'
5237                                                 onmouseout='postMouseOut($id)'";
5238
5239                                         $reply['content'] .= "<div class=\"$class\"
5240                                                 id=\"RROW-$id\" $mouseover_attrs'>";
5241
5242                                         $reply['content'] .= "<div class=\"cdmHeader\">";
5243
5244                                         $reply['content'] .= "<div style='float : right'>";
5245                                         $reply['content'] .= "<span class='updated'>$updated_fmt</span>";
5246                                         $reply['content'] .= "$score_pic";
5247
5248                                         if (!get_pref($link, "VFEED_GROUP_BY_FEED") && $line["feed_title"]) {
5249                                                 $reply['content'] .= "<span style=\"cursor : pointer\"
5250                                                         title=\"".htmlspecialchars($line["feed_title"])."\"
5251                                                         onclick=\"viewfeed($feed_id)\">$feed_icon_img</span>";
5252                                         }
5253                                         $reply['content'] .= "<div class=\"updPic\">$update_pic</div>";
5254
5255                                         $reply['content'] .= "</div>";
5256
5257                                         $reply['content'] .= "<input type=\"checkbox\" onclick=\"toggleSelectRowById(this,
5258                                                         'RROW-$id')\" id=\"RCHK-$id\"/>";
5259
5260                                         $reply['content'] .= "$marked_pic";
5261                                         $reply['content'] .= "$published_pic";
5262
5263                                         $reply['content'] .= "<span id=\"RTITLE-$id\"
5264                                                 onclick=\"return cdmClicked(event, $id);\"
5265                                                 class=\"titleWrap$hlc_suffix\">
5266                                                 <a class=\"title\"
5267                                                 title=\"".htmlspecialchars($line['title'])."\"
5268                                                 target=\"_blank\" href=\"".
5269                                                 htmlspecialchars($line["link"])."\">".
5270                                                 truncate_string($line["title"], 100) .
5271                                                 " $entry_author</a>";
5272
5273                                         $reply['content'] .= $labels_str;
5274
5275                                         if (!$expand_cdm)
5276                                                 $content_hidden = "style=\"display : none\"";
5277                                         else
5278                                                 $excerpt_hidden = "style=\"display : none\"";
5279
5280                                         $reply['content'] .= "<span $excerpt_hidden
5281                                                 id=\"CEXC-$id\" class=\"cdmExcerpt\"> - $content_preview</span>";
5282
5283                                         $reply['content'] .= "</span>";
5284
5285                                         $reply['content'] .= "</div>";
5286
5287                                         $reply['content'] .= "<div class=\"cdmContent\" $content_hidden
5288                                                 onclick=\"return cdmClicked(event, $id);\"
5289                                                 id=\"CICD-$id\">";
5290
5291                                         $reply['content'] .= "<div class=\"cdmContentInner\">";
5292
5293                         if ($line["orig_feed_id"]) {
5294
5295                                 $tmp_result = db_query($link, "SELECT * FROM ttrss_archived_feeds
5296                                         WHERE id = ".$line["orig_feed_id"]);
5297
5298                                                 if (db_num_rows($tmp_result) != 0) {
5299
5300                                                         $reply['content'] .= "<div clear='both'>";
5301                                                         $reply['content'] .= __("Originally from:");
5302
5303                                                         $reply['content'] .= "&nbsp;";
5304
5305                                                         $tmp_line = db_fetch_assoc($tmp_result);
5306
5307                                                         $reply['content'] .= "<a target='_blank'
5308                                                                 href=' " . htmlspecialchars($tmp_line['site_url']) . "'>" .
5309                                                                 $tmp_line['title'] . "</a>";
5310
5311                                                         $reply['content'] .= "&nbsp;";
5312
5313                                                         $reply['content'] .= "<a target='_blank' href='" . htmlspecialchars($tmp_line['feed_url']) . "'>";
5314                                                         $reply['content'] .= "<img title='".__('Feed URL')."'class='tinyFeedIcon' src='images/pub_set.gif'></a>";
5315
5316                                                         $reply['content'] .= "</div>";
5317                                                 }
5318                                         }
5319
5320                                         // FIXME: make this less of a hack
5321
5322                                         $feed_site_url = false;
5323
5324                                         if ($line["feed_id"]) {
5325                                                 $tmp_result = db_query($link, "SELECT site_url FROM ttrss_feeds
5326                                                         WHERE id = " . $line["feed_id"]);
5327
5328                                                 if (db_num_rows($tmp_result) == 1) {
5329                                                         $feed_site_url = db_fetch_result($tmp_result, 0, "site_url");
5330                                                 }
5331                                         }
5332
5333                                         if ($expand_cdm) {
5334                                                 $article_content = sanitize_rss($link, $line["content_preview"],
5335                                                         false, false, $feed_site_url);
5336
5337                                                 if (!$article_content) $article_content = "&nbsp;";
5338                                         } else {
5339                                                 $article_content = '';
5340                                         }
5341
5342                                         $reply['content'] .= "<div id=\"POSTNOTE-$id\">";
5343                                         if ($line['note']) {
5344                                                 $reply['content'] .= format_article_note($id, $line['note']);
5345                                         }
5346                                         $reply['content'] .= "</div>";
5347
5348                                         $reply['content'] .= "<span id=\"CWRAP-$id\">$article_content</span>";
5349
5350                                         $tmp_result = db_query($link, "SELECT always_display_enclosures FROM
5351                                                 ttrss_feeds WHERE id = ".
5352                                                 (($line['feed_id'] == null) ? $line['orig_feed_id'] :
5353                                                                 $line['feed_id'])." AND owner_uid = ".$_SESSION["uid"]);
5354
5355                                         $always_display_enclosures = sql_bool_to_bool(db_fetch_result($tmp_result,
5356                                                 0, "always_display_enclosures"));
5357
5358                                         $reply['content'] .= format_article_enclosures($link, $id, $always_display_enclosures,
5359                                                 $article_content);
5360
5361                                         $reply['content'] .= "</div>";
5362
5363                                         $reply['content'] .= "<div class=\"cdmFooter\">";
5364
5365                                         $tags_str = format_tags_string(get_article_tags($link, $id), $id);
5366
5367                                         $reply['content'] .= "<img src='".theme_image($link,
5368                                                         'images/tag.png')."' alt='Tags' title='Tags'>
5369                                                 <span id=\"ATSTR-$id\">$tags_str</span>
5370                                                 <a title=\"".__('Edit tags for this article')."\"
5371                                                 href=\"#\" onclick=\"editArticleTags($id, $feed_id, true)\">(+)</a>";
5372
5373                                         $reply['content'] .= "<div style=\"float : right\">";
5374
5375                                         $reply['content'] .= "<img src=\"images/art-zoom.png\"
5376                                                 onclick=\"zoomToArticle(event, $id)\"
5377                                                 style=\"cursor : pointer\"
5378                                                 alt='Zoom'
5379                                                 title='".__('Open article in new tab')."'>";
5380
5381                                         //$note_escaped = htmlspecialchars($line['note'], ENT_QUOTES);
5382
5383                                         $reply['content'] .= "<img src=\"images/art-pub-note.png\"
5384                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5385                                                 onclick=\"editArticleNote($id)\"
5386                                                 alt='PubNote' title='".__('Edit article note')."'>";
5387
5388                                         if (DIGEST_ENABLE) {
5389                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-email.png')."\"
5390                                                         style=\"cursor : pointer\"
5391                                                         onclick=\"emailArticle($id)\"
5392                                                         alt='Zoom' title='".__('Forward by email')."'>";
5393                                         }
5394
5395                                         if (ENABLE_TWEET_BUTTON) {
5396                                                 $reply['content'] .= "<img src=\"".theme_image($link, 'images/art-tweet.png')."\"
5397                                                         class='tagsPic' style=\"cursor : pointer\"
5398                                                         onclick=\"tweetArticle($id)\"
5399                                                         alt='Zoom' title='".__('Share on Twitter')."'>";
5400                                         }
5401
5402                                         $reply['content'] .= "<img src=\"images/digest_checkbox.png\"
5403                                                 style=\"cursor : pointer\" style=\"cursor : pointer\"
5404                                                 onclick=\"dismissArticle($id)\"
5405                                                 alt='Dismiss' title='".__('Dismiss article')."'>";
5406
5407                                         $reply['content'] .= "</div>";
5408                                         $reply['content'] .= "</div>";
5409
5410                                         $reply['content'] .= "</div>";
5411
5412                                         $reply['content'] .= "</div>";
5413
5414                                 }
5415
5416                                 ++$lnum;
5417                         }
5418
5419                 } else {
5420                         $message = "";
5421
5422                         switch ($view_mode) {
5423                                 case "unread":
5424                                         $message = __("No unread articles found to display.");
5425                                         break;
5426                                 case "updated":
5427                                         $message = __("No updated articles found to display.");
5428                                         break;
5429                                 case "marked":
5430                                         $message = __("No starred articles found to display.");
5431                                         break;
5432                                 default:
5433                                         if ($feed < -10) {
5434                                                 $message = __("No articles found to display. You can assign articles to labels manually (see the Actions menu above) or use a filter.");
5435                                         } else {
5436                                                 $message = __("No articles found to display.");
5437                                         }
5438                         }
5439
5440                         if (!$offset && $message) {
5441                                 $reply['content'] .= "<div class='whiteBox'>$message";
5442
5443                                 $reply['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
5444
5445                                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
5446                                         WHERE owner_uid = " . $_SESSION['uid']);
5447
5448                                 $last_updated = db_fetch_result($result, 0, "last_updated");
5449                                 $last_updated = make_local_datetime($link, $last_updated, false);
5450
5451                                 $reply['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
5452
5453                                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
5454                                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
5455
5456                                 $num_errors = db_fetch_result($result, 0, "num_errors");
5457
5458                                 if ($num_errors > 0) {
5459                                         $reply['content'] .= "<br/>";
5460                                         $reply['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
5461                                                 __('Some feeds have update errors (click for details)')."</a>";
5462                                 }
5463                                 $reply['content'] .= "</span></p></div>";
5464                         }
5465                 }
5466
5467 #               if (!$offset) {
5468 #                       if ($headlines_count > 0) print "</div>";
5469 #                       print "</div>";
5470 #               }
5471
5472                 #print "]]></content>";
5473
5474                 return array($topmost_article_ids, $headlines_count, $feed, $disable_cache,
5475                         $vgroup_last_feed, $reply['content'], $reply['toolbar']);
5476         }
5477
5478 // from here: http://www.roscripts.com/Create_tag_cloud-71.html
5479
5480         function printTagCloud($link) {
5481
5482                 $query = "SELECT tag_name, COUNT(post_int_id) AS count
5483                         FROM ttrss_tags WHERE owner_uid = ".$_SESSION["uid"]."
5484                         GROUP BY tag_name ORDER BY count DESC LIMIT 50";
5485
5486                 $result = db_query($link, $query);
5487
5488                 $tags = array();
5489
5490                 while ($line = db_fetch_assoc($result)) {
5491                         $tags[$line["tag_name"]] = $line["count"];
5492                 }
5493
5494                 ksort($tags);
5495
5496                 $max_size = 32; // max font size in pixels
5497                 $min_size = 11; // min font size in pixels
5498
5499                 // largest and smallest array values
5500                 $max_qty = max(array_values($tags));
5501                 $min_qty = min(array_values($tags));
5502
5503                 // find the range of values
5504                 $spread = $max_qty - $min_qty;
5505                 if ($spread == 0) { // we don't want to divide by zero
5506                                 $spread = 1;
5507                 }
5508
5509                 // set the font-size increment
5510                 $step = ($max_size - $min_size) / ($spread);
5511
5512                 // loop through the tag array
5513                 foreach ($tags as $key => $value) {
5514                         // calculate font-size
5515                         // find the $value in excess of $min_qty
5516                         // multiply by the font-size increment ($size)
5517                         // and add the $min_size set above
5518                         $size = round($min_size + (($value - $min_qty) * $step));
5519
5520                         $key_escaped = str_replace("'", "\\'", $key);
5521
5522                         echo "<a href=\"javascript:viewfeed('$key_escaped') \" style=\"font-size: " .
5523                                 $size . "px\" title=\"$value articles tagged with " .
5524                                 $key . '">' . $key . '</a> ';
5525                 }
5526         }
5527
5528         function print_checkpoint($n, $s) {
5529                 $ts = getmicrotime();
5530                 echo sprintf("<!-- CP[$n] %.4f seconds -->", $ts - $s);
5531                 return $ts;
5532         }
5533
5534         function sanitize_tag($tag) {
5535                 $tag = trim($tag);
5536
5537                 $tag = mb_strtolower($tag, 'utf-8');
5538
5539                 $tag = preg_replace('/[\'\"\+\>\<]/', "", $tag);
5540
5541 //              $tag = str_replace('"', "", $tag);
5542 //              $tag = str_replace("+", " ", $tag);
5543                 $tag = str_replace("technorati tag: ", "", $tag);
5544
5545                 return $tag;
5546         }
5547
5548         function get_self_url_prefix() {
5549
5550                 /* $url_path = "";
5551
5552                 if ($_SERVER['HTTPS'] != "on") {
5553                         $url_path = "http://";
5554                 } else {
5555                         $url_path = "https://";
5556                 }
5557
5558                 $url_path .= $_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
5559
5560                 return $url_path; */
5561
5562                 return SELF_URL_PATH;
5563
5564         }
5565         function opml_publish_url($link){
5566
5567                 $url_path = get_self_url_prefix();
5568                 $url_path .= "/opml.php?op=publish&key=" .
5569                         get_feed_access_key($link, 'OPML:Publish', false, $_SESSION["uid"]);
5570
5571                 return $url_path;
5572         }
5573
5574         /**
5575          * Purge a feed contents, marked articles excepted.
5576          *
5577          * @param mixed $link The database connection.
5578          * @param integer $id The id of the feed to purge.
5579          * @return void
5580          */
5581         function clear_feed_articles($link, $id) {
5582
5583                 if ($id != 0) {
5584                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5585                         WHERE feed_id = '$id' AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5586                 } else {
5587                         $result = db_query($link, "DELETE FROM ttrss_user_entries
5588                         WHERE feed_id IS NULL AND marked = false AND owner_uid = " . $_SESSION["uid"]);
5589                 }
5590
5591                 $result = db_query($link, "DELETE FROM ttrss_entries WHERE
5592                         (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
5593
5594                 ccache_update($link, $id, $_SESSION['uid']);
5595         } // function clear_feed_articles
5596
5597         /**
5598          * Compute the Mozilla Firefox feed adding URL from server HOST and REQUEST_URI.
5599          *
5600          * @return string The Mozilla Firefox feed adding URL.
5601          */
5602         function add_feed_url() {
5603                 //$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);
5604
5605                 $url_path = get_self_url_prefix() .
5606                         "/backend.php?op=pref-feeds&quiet=1&subop=add&feed_url=%s";
5607                 return $url_path;
5608         } // function add_feed_url
5609
5610         /**
5611          * Encrypt a password in SHA1.
5612          *
5613          * @param string $pass The password to encrypt.
5614          * @param string $login A optionnal login.
5615          * @return string The encrypted password.
5616          */
5617         function encrypt_password($pass, $login = '') {
5618                 if ($login) {
5619                         return "SHA1X:" . sha1("$login:$pass");
5620                 } else {
5621                         return "SHA1:" . sha1($pass);
5622                 }
5623         } // function encrypt_password
5624
5625         /**
5626          * Update a feed batch.
5627          * Used by daemons to update n feeds by run.
5628          * Only update feed needing a update, and not being processed
5629          * by another process.
5630          *
5631          * @param mixed $link Database link
5632          * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
5633          * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
5634          * @param boolean $debug Set to false to disable debug output. Default to true.
5635          * @return void
5636          */
5637         function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
5638                 // Process all other feeds using last_updated and interval parameters
5639
5640                 // Test if the user has loggued in recently. If not, it does not update its feeds.
5641                 if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
5642                         if (DB_TYPE == "pgsql") {
5643                                 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
5644                         } else {
5645                                 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
5646                         }
5647                 } else {
5648                         $login_thresh_qpart = "";
5649                 }
5650
5651                 // Test if the feed need a update (update interval exceded).
5652                 if (DB_TYPE == "pgsql") {
5653                         $update_limit_qpart = "AND ((
5654                                         ttrss_feeds.update_interval = 0
5655                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
5656                                 ) OR (
5657                                         ttrss_feeds.update_interval > 0
5658                                         AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
5659                                 ) OR ttrss_feeds.last_updated IS NULL)";
5660                 } else {
5661                         $update_limit_qpart = "AND ((
5662                                         ttrss_feeds.update_interval = 0
5663                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
5664                                 ) OR (
5665                                         ttrss_feeds.update_interval > 0
5666                                         AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
5667                                 ) OR ttrss_feeds.last_updated IS NULL)";
5668                 }
5669
5670                 // Test if feed is currently being updated by another process.
5671                 if (DB_TYPE == "pgsql") {
5672                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
5673                 } else {
5674                         $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
5675                 }
5676
5677                 // Test if there is a limit to number of updated feeds
5678                 $query_limit = "";
5679                 if($limit) $query_limit = sprintf("LIMIT %d", $limit);
5680
5681                 $random_qpart = sql_random_function();
5682
5683                 // We search for feed needing update.
5684                 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
5685                                 ".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
5686                                 ttrss_feeds.update_interval
5687                         FROM
5688                                 ttrss_feeds, ttrss_users, ttrss_user_prefs
5689                         WHERE
5690                                 ttrss_feeds.owner_uid = ttrss_users.id
5691                                 AND ttrss_users.id = ttrss_user_prefs.owner_uid
5692                                 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
5693                                 $login_thresh_qpart $update_limit_qpart
5694                          $updstart_thresh_qpart
5695                         ORDER BY $random_qpart $query_limit");
5696
5697                 $user_prefs_cache = array();
5698
5699                 if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
5700
5701                 // Here is a little cache magic in order to minimize risk of double feed updates.
5702                 $feeds_to_update = array();
5703                 while ($line = db_fetch_assoc($result)) {
5704                         $feeds_to_update[$line['id']] = $line;
5705                 }
5706
5707                 // We update the feed last update started date before anything else.
5708                 // There is no lag due to feed contents downloads
5709                 // It prevent an other process to update the same feed.
5710                 $feed_ids = array_keys($feeds_to_update);
5711                 if($feed_ids) {
5712                         db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
5713                                 WHERE id IN (%s)", implode(',', $feed_ids)));
5714                 }
5715
5716                 // For each feed, we call the feed update function.
5717                 while ($line = array_pop($feeds_to_update)) {
5718
5719                         if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
5720
5721                         update_rss_feed($link, $line["id"], true);
5722
5723                         sleep(1); // prevent flood (FIXME make this an option?)
5724                 }
5725
5726                 // Send feed digests by email if needed.
5727                 if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
5728
5729         } // function update_daemon_common
5730
5731         function sanitize_article_content($text) {
5732                 # we don't support CDATA sections in articles, they break our own escaping
5733                 $text = preg_replace("/\[\[CDATA/", "", $text);
5734                 $text = preg_replace("/\]\]\>/", "", $text);
5735                 return $text;
5736         }
5737
5738         function load_filters($link, $feed, $owner_uid, $action_id = false) {
5739                 $filters = array();
5740
5741                 global $memcache;
5742
5743                 $obj_id = md5("FILTER:$feed:$owner_uid:$action_id");
5744
5745                 if ($memcache && $obj = $memcache->get($obj_id)) {
5746
5747                         return $obj;
5748
5749                 } else {
5750
5751                         if ($action_id) $ftype_query_part = "action_id = '$action_id' AND";
5752
5753                         $result = db_query($link, "SELECT reg_exp,
5754                                 ttrss_filter_types.name AS name,
5755                                 ttrss_filter_actions.name AS action,
5756                                 inverse,
5757                                 action_param,
5758                                 filter_param
5759                                 FROM ttrss_filters,ttrss_filter_types,ttrss_filter_actions WHERE
5760                                         enabled = true AND
5761                                         $ftype_query_part
5762                                         owner_uid = $owner_uid AND
5763                                         ttrss_filter_types.id = filter_type AND
5764                                         ttrss_filter_actions.id = action_id AND
5765                                         (feed_id IS NULL OR feed_id = '$feed') ORDER BY reg_exp");
5766
5767                         while ($line = db_fetch_assoc($result)) {
5768                                 if (!$filters[$line["name"]]) $filters[$line["name"]] = array();
5769                                         $filter["reg_exp"] = $line["reg_exp"];
5770                                         $filter["action"] = $line["action"];
5771                                         $filter["action_param"] = $line["action_param"];
5772                                         $filter["filter_param"] = $line["filter_param"];
5773                                         $filter["inverse"] = sql_bool_to_bool($line["inverse"]);
5774
5775                                         array_push($filters[$line["name"]], $filter);
5776                                 }
5777
5778                         if ($memcache) $memcache->add($obj_id, $filters, 0, 3600*8);
5779
5780                         return $filters;
5781                 }
5782         }
5783
5784         function get_score_pic($score) {
5785                 if ($score > 100) {
5786                         return "score_high.png";
5787                 } else if ($score > 0) {
5788                         return "score_half_high.png";
5789                 } else if ($score < -100) {
5790                         return "score_low.png";
5791                 } else if ($score < 0) {
5792                         return "score_half_low.png";
5793                 } else {
5794                         return "score_neutral.png";
5795                 }
5796         }
5797
5798         function rounded_table_start($classname, $header = "&nbsp;") {
5799                 print "<table width='100%' class='$classname' cellspacing='0' cellpadding='0'>";
5800                 print "<tr><td class='c1'>&nbsp;</td><td class='top'>$header</td><td class='c2'>&nbsp;</td></tr>";
5801                 print "<tr><td class='left'>&nbsp;</td><td class='content'>";
5802         }
5803
5804         function rounded_table_end($footer = "&nbsp;") {
5805                 print "</td><td class='right'>&nbsp;</td></tr>";
5806                 print "<tr><td class='c4'>&nbsp;</td><td class='bottom'>$footer</td><td class='c3'>&nbsp;</td></tr>";
5807                 print "</table>";
5808         }
5809
5810         function feed_has_icon($id) {
5811                 return is_file(ICONS_DIR . "/$id.ico") && filesize(ICONS_DIR . "/$id.ico") > 0;
5812         }
5813
5814         function init_connection($link) {
5815                 if (DB_TYPE == "pgsql") {
5816                         pg_query($link, "set client_encoding = 'UTF-8'");
5817                         pg_set_client_encoding("UNICODE");
5818                         pg_query($link, "set datestyle = 'ISO, european'");
5819                         pg_query($link, "set TIME ZONE 0");
5820                 } else {
5821                         db_query($link, "SET time_zone = '+0:0'");
5822
5823                         if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
5824                                 db_query($link, "SET NAMES " . MYSQL_CHARSET);
5825         //                      db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
5826                         }
5827                 }
5828         }
5829
5830         function update_feedbrowser_cache($link) {
5831
5832                 $result = db_query($link, "SELECT feed_url,title, COUNT(id) AS subscribers
5833                         FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
5834                                 WHERE tf.feed_url = ttrss_feeds.feed_url
5835                                 AND (private IS true OR feed_url LIKE '%:%@%/%'))
5836                                 GROUP BY feed_url, title ORDER BY subscribers DESC LIMIT 1000");
5837
5838                 db_query($link, "BEGIN");
5839
5840                 db_query($link, "DELETE FROM ttrss_feedbrowser_cache");
5841
5842                 $count = 0;
5843
5844                 while ($line = db_fetch_assoc($result)) {
5845                         $subscribers = db_escape_string($line["subscribers"]);
5846                         $feed_url = db_escape_string($line["feed_url"]);
5847                         $title = db_escape_string($line["title"]);
5848
5849                         $tmp_result = db_query($link, "SELECT subscribers FROM
5850                                 ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
5851
5852                         if (db_num_rows($tmp_result) == 0) {
5853
5854                                 db_query($link, "INSERT INTO ttrss_feedbrowser_cache
5855                                         (feed_url, title, subscribers) VALUES ('$feed_url',
5856                                                 '$title', '$subscribers')");
5857
5858                                 ++$count;
5859
5860                         }
5861
5862                 }
5863
5864                 db_query($link, "COMMIT");
5865
5866                 return $count;
5867
5868         }
5869
5870         function ccache_zero($link, $feed_id, $owner_uid) {
5871                 db_query($link, "UPDATE ttrss_counters_cache SET
5872                         value = 0, updated = NOW() WHERE
5873                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5874         }
5875
5876         function ccache_zero_all($link, $owner_uid) {
5877                 db_query($link, "UPDATE ttrss_counters_cache SET
5878                         value = 0 WHERE owner_uid = '$owner_uid'");
5879
5880                 db_query($link, "UPDATE ttrss_cat_counters_cache SET
5881                         value = 0 WHERE owner_uid = '$owner_uid'");
5882         }
5883
5884         function ccache_remove($link, $feed_id, $owner_uid, $is_cat = false) {
5885
5886                 if (!$is_cat) {
5887                         $table = "ttrss_counters_cache";
5888                 } else {
5889                         $table = "ttrss_cat_counters_cache";
5890                 }
5891
5892                 db_query($link, "DELETE FROM $table WHERE
5893                         feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
5894
5895         }
5896
5897         function ccache_update_all($link, $owner_uid) {
5898
5899                 if (get_pref($link, 'ENABLE_FEED_CATS', $owner_uid)) {
5900
5901                         $result = db_query($link, "SELECT feed_id FROM ttrss_cat_counters_cache
5902                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5903
5904                         while ($line = db_fetch_assoc($result)) {
5905                                 ccache_update($link, $line["feed_id"], $owner_uid, true);
5906                         }
5907
5908                         /* We have to manually include category 0 */
5909
5910                         ccache_update($link, 0, $owner_uid, true);
5911
5912                 } else {
5913                         $result = db_query($link, "SELECT feed_id FROM ttrss_counters_cache
5914                                 WHERE feed_id > 0 AND owner_uid = '$owner_uid'");
5915
5916                         while ($line = db_fetch_assoc($result)) {
5917                                 print ccache_update($link, $line["feed_id"], $owner_uid);
5918
5919                         }
5920
5921                 }
5922         }
5923
5924         function ccache_find($link, $feed_id, $owner_uid, $is_cat = false,
5925                 $no_update = false) {
5926
5927                 if (!is_numeric($feed_id)) return;
5928
5929                 if (!$is_cat) {
5930                         $table = "ttrss_counters_cache";
5931                         if ($feed_id > 0) {
5932                                 $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5933                                         WHERE id = '$feed_id'");
5934                                 $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5935                         }
5936                 } else {
5937                         $table = "ttrss_cat_counters_cache";
5938                 }
5939
5940                 if (DB_TYPE == "pgsql") {
5941                         $date_qpart = "updated > NOW() - INTERVAL '15 minutes'";
5942                 } else if (DB_TYPE == "mysql") {
5943                         $date_qpart = "updated > DATE_SUB(NOW(), INTERVAL 15 MINUTE)";
5944                 }
5945
5946                 $result = db_query($link, "SELECT value FROM $table
5947                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id'
5948                         LIMIT 1");
5949
5950                 if (db_num_rows($result) == 1) {
5951                         return db_fetch_result($result, 0, "value");
5952                 } else {
5953                         if ($no_update) {
5954                                 return -1;
5955                         } else {
5956                                 return ccache_update($link, $feed_id, $owner_uid, $is_cat);
5957                         }
5958                 }
5959
5960         }
5961
5962         function ccache_update($link, $feed_id, $owner_uid, $is_cat = false,
5963                 $update_pcat = true) {
5964
5965                 if (!is_numeric($feed_id)) return;
5966
5967                 if (!$is_cat && $feed_id > 0) {
5968                         $tmp_result = db_query($link, "SELECT owner_uid FROM ttrss_feeds
5969                                 WHERE id = '$feed_id'");
5970                         $owner_uid = db_fetch_result($tmp_result, 0, "owner_uid");
5971                 }
5972
5973                 $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
5974
5975                 /* When updating a label, all we need to do is recalculate feed counters
5976                  * because labels are not cached */
5977
5978                 if ($feed_id < 0) {
5979                         ccache_update_all($link, $owner_uid);
5980                         return;
5981                 }
5982
5983                 if (!$is_cat) {
5984                         $table = "ttrss_counters_cache";
5985                 } else {
5986                         $table = "ttrss_cat_counters_cache";
5987                 }
5988
5989                 if ($is_cat && $feed_id >= 0) {
5990                         if ($feed_id != 0) {
5991                                 $cat_qpart = "cat_id = '$feed_id'";
5992                         } else {
5993                                 $cat_qpart = "cat_id IS NULL";
5994                         }
5995
5996                         /* Recalculate counters for child feeds */
5997
5998                         $result = db_query($link, "SELECT id FROM ttrss_feeds
5999                                                 WHERE owner_uid = '$owner_uid' AND $cat_qpart");
6000
6001                         while ($line = db_fetch_assoc($result)) {
6002                                 ccache_update($link, $line["id"], $owner_uid, false, false);
6003                         }
6004
6005                         $result = db_query($link, "SELECT SUM(value) AS sv
6006                                 FROM ttrss_counters_cache, ttrss_feeds
6007                                 WHERE id = feed_id AND $cat_qpart AND
6008                                 ttrss_feeds.owner_uid = '$owner_uid'");
6009
6010                         $unread = (int) db_fetch_result($result, 0, "sv");
6011
6012                 } else {
6013                         $unread = (int) getFeedArticles($link, $feed_id, $is_cat, true, $owner_uid);
6014                 }
6015
6016                 db_query($link, "BEGIN");
6017
6018                 $result = db_query($link, "SELECT feed_id FROM $table
6019                         WHERE owner_uid = '$owner_uid' AND feed_id = '$feed_id' LIMIT 1");
6020
6021                 if (db_num_rows($result) == 1) {
6022                         db_query($link, "UPDATE $table SET
6023                                 value = '$unread', updated = NOW() WHERE
6024                                 feed_id = '$feed_id' AND owner_uid = '$owner_uid'");
6025
6026                 } else {
6027                         db_query($link, "INSERT INTO $table
6028                                 (feed_id, value, owner_uid, updated)
6029                                 VALUES
6030                                 ($feed_id, $unread, $owner_uid, NOW())");
6031                 }
6032
6033                 db_query($link, "COMMIT");
6034
6035                 if ($feed_id > 0 && $prev_unread != $unread) {
6036
6037                         if (!$is_cat) {
6038
6039                                 /* Update parent category */
6040
6041                                 if ($update_pcat) {
6042
6043                                         $result = db_query($link, "SELECT cat_id FROM ttrss_feeds
6044                                                 WHERE owner_uid = '$owner_uid' AND id = '$feed_id'");
6045
6046                                         $cat_id = (int) db_fetch_result($result, 0, "cat_id");
6047
6048                                         ccache_update($link, $cat_id, $owner_uid, true);
6049
6050                                 }
6051                         }
6052                 } else if ($feed_id < 0) {
6053                         ccache_update_all($link, $owner_uid);
6054                 }
6055
6056                 return $unread;
6057         }
6058
6059         function label_find_id($link, $label, $owner_uid) {
6060                 $result = db_query($link,
6061                         "SELECT id FROM ttrss_labels2 WHERE caption = '$label'
6062                                 AND owner_uid = '$owner_uid' LIMIT 1");
6063
6064                 if (db_num_rows($result) == 1) {
6065                         return db_fetch_result($result, 0, "id");
6066                 } else {
6067                         return 0;
6068                 }
6069         }
6070
6071         function get_article_labels($link, $id) {
6072                 global $memcache;
6073
6074                 $obj_id = md5("LABELS:$id:" . $_SESSION["uid"]);
6075
6076                 $rv = array();
6077
6078                 if ($memcache && $obj = $memcache->get($obj_id)) {
6079                         return $obj;
6080                 } else {
6081
6082                         $result = db_query($link, "SELECT label_cache FROM
6083                                 ttrss_user_entries WHERE ref_id = '$id' AND owner_uid = " .
6084                                 $_SESSION["uid"]);
6085
6086                         $label_cache = db_fetch_result($result, 0, "label_cache");
6087
6088                         if ($label_cache) {
6089
6090                                 $label_cache = json_decode($label_cache, true);
6091
6092                                 if ($label_cache["no-labels"] == 1)
6093                                         return $rv;
6094                                 else
6095                                         return $label_cache;
6096                         }
6097
6098                         $result = db_query($link,
6099                                 "SELECT DISTINCT label_id,caption,fg_color,bg_color
6100                                         FROM ttrss_labels2, ttrss_user_labels2
6101                                 WHERE id = label_id
6102                                         AND article_id = '$id'
6103                                         AND owner_uid = ".$_SESSION["uid"] . "
6104                                 ORDER BY caption");
6105
6106                         while ($line = db_fetch_assoc($result)) {
6107                                 $rk = array($line["label_id"], $line["caption"], $line["fg_color"],
6108                                         $line["bg_color"]);
6109                                 array_push($rv, $rk);
6110                         }
6111                         if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6112
6113                         if (count($rv) > 0)
6114                                 label_update_cache($link, $id, $rv);
6115                         else
6116                                 label_update_cache($link, $id, array("no-labels" => 1));
6117                 }
6118
6119                 return $rv;
6120         }
6121
6122
6123         function label_find_caption($link, $label, $owner_uid) {
6124                 $result = db_query($link,
6125                         "SELECT caption FROM ttrss_labels2 WHERE id = '$label'
6126                                 AND owner_uid = '$owner_uid' LIMIT 1");
6127
6128                 if (db_num_rows($result) == 1) {
6129                         return db_fetch_result($result, 0, "caption");
6130                 } else {
6131                         return "";
6132                 }
6133         }
6134
6135         function label_update_cache($link, $id, $labels = false, $force = false) {
6136
6137                 if ($force)
6138                         label_clear_cache($link, $id);
6139
6140                 if (!$labels)
6141                         $labels = get_article_labels($link, $id);
6142
6143                 $labels = db_escape_string(json_encode($labels));
6144
6145                 db_query($link, "UPDATE ttrss_user_entries SET
6146                         label_cache = '$labels' WHERE ref_id = '$id'");
6147
6148         }
6149
6150         function label_clear_cache($link, $id) {
6151
6152                 db_query($link, "UPDATE ttrss_user_entries SET
6153                         label_cache = '' WHERE ref_id = '$id'");
6154
6155         }
6156
6157         function label_remove_article($link, $id, $label, $owner_uid) {
6158
6159                 $label_id = label_find_id($link, $label, $owner_uid);
6160
6161                 if (!$label_id) return;
6162
6163                 $result = db_query($link,
6164                         "DELETE FROM ttrss_user_labels2
6165                         WHERE
6166                                 label_id = '$label_id' AND
6167                                 article_id = '$id'");
6168
6169                 label_clear_cache($link, $id);
6170         }
6171
6172         function label_add_article($link, $id, $label, $owner_uid) {
6173
6174                 global $memcache;
6175
6176                 if ($memcache) {
6177                         $obj_id = md5("LABELS:$id:$owner_uid");
6178                         $memcache->delete($obj_id);
6179                 }
6180
6181                 $label_id = label_find_id($link, $label, $owner_uid);
6182
6183                 if (!$label_id) return;
6184
6185                 $result = db_query($link,
6186                         "SELECT
6187                                 article_id FROM ttrss_labels2, ttrss_user_labels2
6188                         WHERE
6189                                 label_id = id AND
6190                                 label_id = '$label_id' AND
6191                                 article_id = '$id' AND owner_uid = '$owner_uid'
6192                         LIMIT 1");
6193
6194                 if (db_num_rows($result) == 0) {
6195                         db_query($link, "INSERT INTO ttrss_user_labels2
6196                                 (label_id, article_id) VALUES ('$label_id', '$id')");
6197                 }
6198
6199                 label_clear_cache($link, $id);
6200
6201         }
6202
6203         function label_remove($link, $id, $owner_uid) {
6204                 global $memcache;
6205
6206                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6207
6208                 if ($memcache) {
6209                         $obj_id = md5("LABELS:$id:$owner_uid");
6210                         $memcache->delete($obj_id);
6211                 }
6212
6213                 db_query($link, "BEGIN");
6214
6215                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6216                         WHERE id = '$id'");
6217
6218                 $caption = db_fetch_result($result, 0, "caption");
6219
6220                 $result = db_query($link, "DELETE FROM ttrss_labels2 WHERE id = '$id'
6221                         AND owner_uid = " . $owner_uid);
6222
6223                 if (db_affected_rows($link, $result) != 0 && $caption) {
6224
6225                         /* Remove access key for the label */
6226
6227                         $ext_id = -11 - $id;
6228
6229                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6230                                 feed_id = '$ext_id' AND owner_uid = $owner_uid");
6231
6232                         /* Disable filters that reference label being removed */
6233
6234                         db_query($link, "UPDATE ttrss_filters SET
6235                                 enabled = false WHERE action_param = '$caption'
6236                                         AND action_id = 7
6237                                         AND owner_uid = " . $owner_uid);
6238
6239                         /* Remove cached data */
6240
6241                         db_query($link, "UPDATE ttrss_user_entries SET label_cache = ''
6242                                 WHERE label_cache LIKE '%$caption%' AND owner_uid = " . $owner_uid);
6243
6244                 }
6245
6246                 db_query($link, "COMMIT");
6247         }
6248
6249         function label_create($link, $caption) {
6250
6251                 db_query($link, "BEGIN");
6252
6253                 $result = false;
6254
6255                 $result = db_query($link, "SELECT id FROM ttrss_labels2
6256                         WHERE caption = '$caption' AND owner_uid =  ". $_SESSION["uid"]);
6257
6258                 if (db_num_rows($result) == 0) {
6259                         $result = db_query($link,
6260                                 "INSERT INTO ttrss_labels2 (caption,owner_uid)
6261                                         VALUES ('$caption', '".$_SESSION["uid"]."')");
6262
6263                         $result = db_affected_rows($link, $result) != 0;
6264                 }
6265
6266                 db_query($link, "COMMIT");
6267
6268                 return $result;
6269         }
6270
6271         function print_labels_headlines_dropdown($link, $feed_id) {
6272                 print "<option value=\"addLabel()\">".__("Create label...")."</option>";
6273
6274                 $result = db_query($link, "SELECT id, caption FROM ttrss_labels2 WHERE
6275                         owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6276
6277                 while ($line = db_fetch_assoc($result)) {
6278
6279                         $label_id = $line["id"];
6280                         $label_caption = $line["caption"];
6281                         $id = $line["id"];
6282
6283                         if ($feed_id < -10 && $feed_id == -11-$label_id) {
6284                                 print "<option id=\"LHDL-$id\"
6285                                         value=\"selectionRemoveLabel($label_id)\">".
6286                                         __('Remove:') . " $label_caption</option>";
6287                         } else {
6288                                 print "<option id=\"LHDL-$id\"
6289                                         value=\"selectionAssignLabel($label_id)\">".
6290                                         __('Assign:') . " $label_caption</option>";
6291                         }
6292                 }
6293         }
6294
6295         function format_tags_string($tags, $id) {
6296
6297                 $tags_str = "";
6298                 $tags_nolinks_str = "";
6299
6300                 $num_tags = 0;
6301
6302 /*              if (get_user_theme($link) == "3pane") {
6303                         $tag_limit = 3;
6304                 } else {
6305                         $tag_limit = 6;
6306                 } */
6307
6308                 $tag_limit = 6;
6309
6310                 $formatted_tags = array();
6311
6312                 foreach ($tags as $tag) {
6313                         $num_tags++;
6314                         $tag_escaped = str_replace("'", "\\'", $tag);
6315
6316                         if (mb_strlen($tag) > 30) {
6317                                 $tag = truncate_string($tag, 30);
6318                         }
6319
6320                         $tag_str = "<a href=\"javascript:viewfeed('$tag_escaped')\">$tag</a>";
6321
6322                         array_push($formatted_tags, $tag_str);
6323
6324                         $tmp_tags_str = implode(", ", $formatted_tags);
6325
6326                         if ($num_tags == $tag_limit || mb_strlen($tmp_tags_str) > 150) {
6327                                 break;
6328                         }
6329                 }
6330
6331                 $tags_str = implode(", ", $formatted_tags);
6332
6333                 if ($num_tags < count($tags)) {
6334                         $tags_str .= ", &hellip;";
6335                 }
6336
6337                 if ($num_tags == 0) {
6338                         $tags_str = __("no tags");
6339                 }
6340
6341                 return $tags_str;
6342
6343         }
6344
6345         function format_article_labels($labels, $id) {
6346
6347                 $labels_str = "";
6348
6349                 foreach ($labels as $l) {
6350                         $labels_str .= sprintf("<span class='hlLabelRef'
6351                                 style='color : %s; background-color : %s'>%s</span>",
6352                                         $l[2], $l[3], $l[1]);
6353                         }
6354
6355                 return $labels_str;
6356
6357         }
6358
6359         function format_article_note($id, $note) {
6360
6361                 $str = "<div class='articleNote' title=\"".__('edit note')."\"
6362                         onclick=\"editArticleNote($id)\">$note</div>";
6363
6364                 return $str;
6365         }
6366
6367         function toggle_collapse_cat($link, $cat_id, $mode) {
6368                 if ($cat_id > 0) {
6369                         $mode = bool_to_sql_bool($mode);
6370
6371                         db_query($link, "UPDATE ttrss_feed_categories SET
6372                                 collapsed = $mode WHERE id = '$cat_id' AND owner_uid = " .
6373                                 $_SESSION["uid"]);
6374                 } else {
6375                         $pref_name = '';
6376
6377                         switch ($cat_id) {
6378                         case -1:
6379                                 $pref_name = '_COLLAPSED_SPECIAL';
6380                                 break;
6381                         case -2:
6382                                 $pref_name = '_COLLAPSED_LABELS';
6383                                 break;
6384                         case 0:
6385                                 $pref_name = '_COLLAPSED_UNCAT';
6386                                 break;
6387                         }
6388
6389                         if ($pref_name) {
6390                                 if ($mode) {
6391                                         set_pref($link, $pref_name, 'true');
6392                                 } else {
6393                                         set_pref($link, $pref_name, 'false');
6394                                 }
6395                         }
6396                 }
6397         }
6398
6399         function remove_feed($link, $id, $owner_uid) {
6400
6401                 if ($id > 0) {
6402
6403                         /* save starred articles in Archived feed */
6404
6405                         db_query($link, "BEGIN");
6406
6407                         /* prepare feed if necessary */
6408
6409                         $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6410                                 WHERE id = '$id'");
6411
6412                         if (db_num_rows($result) == 0) {
6413                                 db_query($link, "INSERT INTO ttrss_archived_feeds
6414                                         (id, owner_uid, title, feed_url, site_url)
6415                                 SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6416                                 WHERE id = '$id'");
6417                         }
6418
6419                         db_query($link, "UPDATE ttrss_user_entries SET feed_id = NULL,
6420                                 orig_feed_id = '$id' WHERE feed_id = '$id' AND
6421                                         marked = true AND owner_uid = $owner_uid");
6422
6423                         /* Remove access key for the feed */
6424
6425                         db_query($link, "DELETE FROM ttrss_access_keys WHERE
6426                                 feed_id = '$id' AND owner_uid = $owner_uid");
6427
6428                         /* remove the feed */
6429
6430                         db_query($link, "DELETE FROM ttrss_feeds
6431                                         WHERE id = '$id' AND owner_uid = $owner_uid");
6432
6433                         db_query($link, "COMMIT");
6434
6435 /*                      if (file_exists(ICONS_DIR . "/$id.ico")) {
6436                                 unlink(ICONS_DIR . "/$id.ico");
6437                         } */
6438
6439                         ccache_remove($link, $id, $owner_uid);
6440
6441                 } else {
6442                         label_remove($link, -11-$id, $owner_uid);
6443                         ccache_remove($link, -11-$id, $owner_uid);
6444                 }
6445         }
6446
6447         function add_feed_category($link, $feed_cat) {
6448
6449                 if (!$feed_cat) return false;
6450
6451                 db_query($link, "BEGIN");
6452
6453                 $result = db_query($link,
6454                         "SELECT id FROM ttrss_feed_categories
6455                         WHERE title = '$feed_cat' AND owner_uid = ".$_SESSION["uid"]);
6456
6457                 if (db_num_rows($result) == 0) {
6458
6459                         $result = db_query($link,
6460                                 "INSERT INTO ttrss_feed_categories (owner_uid,title)
6461                                 VALUES ('".$_SESSION["uid"]."', '$feed_cat')");
6462
6463                         db_query($link, "COMMIT");
6464
6465                         return true;
6466                 }
6467
6468                 return false;
6469         }
6470
6471         function remove_feed_category($link, $id, $owner_uid) {
6472
6473                 db_query($link, "DELETE FROM ttrss_feed_categories
6474                         WHERE id = '$id' AND owner_uid = $owner_uid");
6475
6476                 ccache_remove($link, $id, $owner_uid, true);
6477         }
6478
6479         function archive_article($link, $id, $owner_uid) {
6480                 db_query($link, "BEGIN");
6481
6482                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6483                         WHERE ref_id = '$id' AND owner_uid = $owner_uid");
6484
6485                 if (db_num_rows($result) != 0) {
6486
6487                         /* prepare the archived table */
6488
6489                         $feed_id = (int) db_fetch_result($result, 0, "feed_id");
6490
6491                         if ($feed_id) {
6492                                 $result = db_query($link, "SELECT id FROM ttrss_archived_feeds
6493                                         WHERE id = '$feed_id'");
6494
6495                                 if (db_num_rows($result) == 0) {
6496                                         db_query($link, "INSERT INTO ttrss_archived_feeds
6497                                                 (id, owner_uid, title, feed_url, site_url)
6498                                         SELECT id, owner_uid, title, feed_url, site_url from ttrss_feeds
6499                                         WHERE id = '$feed_id'");
6500                                 }
6501
6502                                 db_query($link, "UPDATE ttrss_user_entries
6503                                         SET orig_feed_id = feed_id, feed_id = NULL
6504                                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6505                         }
6506                 }
6507
6508                 db_query($link, "COMMIT");
6509         }
6510
6511         function getArticleFeed($link, $id) {
6512                 $result = db_query($link, "SELECT feed_id FROM ttrss_user_entries
6513                         WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
6514
6515                 if (db_num_rows($result) != 0) {
6516                         return db_fetch_result($result, 0, "feed_id");
6517                 } else {
6518                         return 0;
6519                 }
6520         }
6521
6522         function make_url_from_parts($parts) {
6523                 $url = $parts['scheme'] . '://' . $parts['host'];
6524
6525                 if ($parts['path']) $url .= $parts['path'];
6526                 if ($parts['query']) $url .= '?' . $parts['query'];
6527
6528                 return $url;
6529         }
6530
6531         /**
6532          * Fixes incomplete URLs by prepending "http://".
6533          * Also replaces feed:// with http://, and
6534          * prepends a trailing slash if the url is a domain name only.
6535          *
6536          * @param string $url Possibly incomplete URL
6537          *
6538          * @return string Fixed URL.
6539          */
6540         function fix_url($url) {
6541                 if (strpos($url, '://') === false) {
6542                         $url = 'http://' . $url;
6543                 } else if (substr($url, 0, 5) == 'feed:') {
6544                         $url = 'http:' . substr($url, 5);
6545                 }
6546
6547                 //prepend slash if the URL has no slash in it
6548                 // "http://www.example" -> "http://www.example/"
6549                 if (strpos($url, '/', strpos($url, ':') + 3) === false) {
6550                         $url .= '/';
6551                 }
6552
6553                 if ($url != "http:///")
6554                         return $url;
6555                 else
6556                         return '';
6557         }
6558
6559         function validate_feed_url($url) {
6560                 $parts = parse_url($url);
6561
6562                 return ($parts['scheme'] == 'http' || $parts['scheme'] == 'feed' || $parts['scheme'] == 'https');
6563
6564         }
6565
6566         function get_article_enclosures($link, $id) {
6567
6568                 global $memcache;
6569
6570                 $query = "SELECT * FROM ttrss_enclosures
6571                         WHERE post_id = '$id' AND content_url != ''";
6572
6573                 $obj_id = md5("ENCLOSURES:$id");
6574
6575                 $rv = array();
6576
6577                 if ($memcache && $obj = $memcache->get($obj_id)) {
6578                         $rv = $obj;
6579                 } else {
6580                         $result = db_query($link, $query);
6581
6582                         if (db_num_rows($result) > 0) {
6583                                 while ($line = db_fetch_assoc($result)) {
6584                                         array_push($rv, $line);
6585                                 }
6586                                 if ($memcache) $memcache->add($obj_id, $rv, 0, 3600);
6587                         }
6588                 }
6589
6590                 return $rv;
6591         }
6592
6593         function api_get_feeds($link, $cat_id, $unread_only, $limit, $offset) {
6594
6595                         $feeds = array();
6596
6597                         /* Labels */
6598
6599                         if ($cat_id == -4 || $cat_id == -2) {
6600                                 $counters = getLabelCounters($link, true);
6601
6602                                 foreach (array_values($counters) as $cv) {
6603
6604                                         $unread = $cv["counter"];
6605
6606                                         if ($unread || !$unread_only) {
6607
6608                                                 $row = array(
6609                                                                 "id" => $cv["id"],
6610                                                                 "title" => $cv["description"],
6611                                                                 "unread" => $cv["counter"],
6612                                                                 "cat_id" => -2,
6613                                                         );
6614
6615                                                 array_push($feeds, $row);
6616                                         }
6617                                 }
6618                         }
6619
6620                         /* Virtual feeds */
6621
6622                         if ($cat_id == -4 || $cat_id == -1) {
6623                                 foreach (array(-1, -2, -3, -4, 0) as $i) {
6624                                         $unread = getFeedUnread($link, $i);
6625
6626                                         if ($unread || !$unread_only) {
6627                                                 $title = getFeedTitle($link, $i);
6628
6629                                                 $row = array(
6630                                                                 "id" => $i,
6631                                                                 "title" => $title,
6632                                                                 "unread" => $unread,
6633                                                                 "cat_id" => -1,
6634                                                         );
6635                                                 array_push($feeds, $row);
6636                                         }
6637
6638                                 }
6639                         }
6640
6641                         /* Real feeds */
6642
6643                         if ($limit) {
6644                                 $limit_qpart = "LIMIT $limit OFFSET $offset";
6645                         } else {
6646                                 $limit_qpart = "";
6647                         }
6648
6649                         if ($cat_id == -4 || $cat_id == -3) {
6650                                 $result = db_query($link, "SELECT
6651                                         id, feed_url, cat_id, title, ".
6652                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6653                                                 FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"] .
6654                                                 " ORDER BY cat_id, title " . $limit_qpart);
6655                         } else {
6656
6657                                 if ($cat_id)
6658                                         $cat_qpart = "cat_id = '$cat_id'";
6659                                 else
6660                                         $cat_qpart = "cat_id IS NULL";
6661
6662                                 $result = db_query($link, "SELECT
6663                                         id, feed_url, cat_id, title, ".
6664                                                 SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
6665                                                 FROM ttrss_feeds WHERE
6666                                                 $cat_qpart AND owner_uid = " . $_SESSION["uid"] .
6667                                                 " ORDER BY cat_id, title " . $limit_qpart);
6668                         }
6669
6670                         while ($line = db_fetch_assoc($result)) {
6671
6672                                 $unread = getFeedUnread($link, $line["id"]);
6673
6674                                 $has_icon = feed_has_icon($line['id']);
6675
6676                                 if ($unread || !$unread_only) {
6677
6678                                         $row = array(
6679                                                         "feed_url" => $line["feed_url"],
6680                                                         "title" => $line["title"],
6681                                                         "id" => (int)$line["id"],
6682                                                         "unread" => (int)$unread,
6683                                                         "has_icon" => $has_icon,
6684                                                         "cat_id" => (int)$line["cat_id"],
6685                                                         "last_updated" => strtotime($line["last_updated"])
6686                                                 );
6687
6688                                         array_push($feeds, $row);
6689                                 }
6690                         }
6691
6692                 return $feeds;
6693         }
6694
6695         function api_get_headlines($link, $feed_id, $limit, $offset,
6696                                         $filter, $is_cat, $show_excerpt, $show_content, $view_mode, $order) {
6697
6698                         /* do not rely on params below */
6699
6700                         $search = db_escape_string($_REQUEST["search"]);
6701                         $search_mode = db_escape_string($_REQUEST["search_mode"]);
6702                         $match_on = db_escape_string($_REQUEST["match_on"]);
6703
6704                         $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit,
6705                                 $view_mode, $is_cat, $search, $search_mode, $match_on,
6706                                 $order, $offset);
6707
6708                         $result = $qfh_ret[0];
6709                         $feed_title = $qfh_ret[1];
6710
6711                         $headlines = array();
6712
6713                         while ($line = db_fetch_assoc($result)) {
6714                                 $is_updated = ($line["last_read"] == "" &&
6715                                         ($line["unread"] != "t" && $line["unread"] != "1"));
6716
6717                                 $headline_row = array(
6718                                                 "id" => (int)$line["id"],
6719                                                 "unread" => sql_bool_to_bool($line["unread"]),
6720                                                 "marked" => sql_bool_to_bool($line["marked"]),
6721                                                 "published" => sql_bool_to_bool($line["published"]),
6722                                                 "updated" => strtotime($line["updated"]),
6723                                                 "is_updated" => $is_updated,
6724                                                 "title" => $line["title"],
6725                                                 "link" => $line["link"],
6726                                                 "feed_id" => $line["feed_id"],
6727                                                 "tags" => get_article_tags($link, $line["id"]),
6728                                         );
6729
6730                                 if ($show_excerpt) {
6731                                         $excerpt = truncate_string(strip_tags($line["content_preview"]), 100);
6732                                         $headline_row["excerpt"] = $excerpt;
6733                                 }
6734
6735                                 if ($show_content) {
6736                                         $headline_row["content"] = $line["content_preview"];
6737                                 }
6738
6739                                 array_push($headlines, $headline_row);
6740                         }
6741
6742                         return $headlines;
6743         }
6744
6745         function generate_error_feed($link, $error) {
6746                 $reply = array();
6747
6748                 $reply['headlines']['id'] = -6;
6749                 $reply['headlines']['is_cat'] = false;
6750
6751                 $reply['headlines']['toolbar'] = '';
6752                 $reply['headlines']['content'] = "<div class='whiteBox'>". $error . "</div>";
6753
6754                 $reply['headlines-info'] = array("count" => 0,
6755                         "vgroup_last_feed" => '',
6756                         "unread" => 0,
6757                         "disable_cache" => true);
6758
6759                 return $reply;
6760         }
6761
6762
6763         function generate_dashboard_feed($link) {
6764                 $reply = array();
6765
6766                 $reply['headlines']['id'] = -5;
6767                 $reply['headlines']['is_cat'] = false;
6768
6769                 $reply['headlines']['toolbar'] = '';
6770                 $reply['headlines']['content'] = "<div class='whiteBox'>".__('No feed selected.');
6771
6772                 $reply['headlines']['content'] .= "<p class=\"small\"><span class=\"insensitive\">";
6773
6774                 $result = db_query($link, "SELECT ".SUBSTRING_FOR_DATE."(MAX(last_updated), 1, 19) AS last_updated FROM ttrss_feeds
6775                         WHERE owner_uid = " . $_SESSION['uid']);
6776
6777                 $last_updated = db_fetch_result($result, 0, "last_updated");
6778                 $last_updated = make_local_datetime($link, $last_updated, false);
6779
6780                 $reply['headlines']['content'] .= sprintf(__("Feeds last updated at %s"), $last_updated);
6781
6782                 $result = db_query($link, "SELECT COUNT(id) AS num_errors
6783                         FROM ttrss_feeds WHERE last_error != '' AND owner_uid = ".$_SESSION["uid"]);
6784
6785                 $num_errors = db_fetch_result($result, 0, "num_errors");
6786
6787                 if ($num_errors > 0) {
6788                         $reply['headlines']['content'] .= "<br/>";
6789                         $reply['headlines']['content'] .= "<a class=\"insensitive\" href=\"#\" onclick=\"showFeedsWithErrors()\">".
6790                                 __('Some feeds have update errors (click for details)')."</a>";
6791                 }
6792                 $reply['headlines']['content'] .= "</span></p>";
6793
6794                 $reply['headlines-info'] = array("count" => 0,
6795                         "vgroup_last_feed" => '',
6796                         "unread" => 0,
6797                         "disable_cache" => true);
6798
6799                 return $reply;
6800         }
6801
6802         function save_email_address($link, $email) {
6803                 // FIXME: implement persistent storage of emails
6804
6805                 if (!$_SESSION['stored_emails'])
6806                         $_SESSION['stored_emails'] = array();
6807
6808                 if (!in_array($email, $_SESSION['stored_emails']))
6809                         array_push($_SESSION['stored_emails'], $email);
6810         }
6811
6812         function update_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6813                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6814
6815                 $sql_is_cat = bool_to_sql_bool($is_cat);
6816
6817                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6818                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6819                         AND owner_uid = " . $owner_uid);
6820
6821                 if (db_num_rows($result) == 1) {
6822                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6823
6824                         db_query($link, "UPDATE ttrss_access_keys SET access_key = '$key'
6825                                 WHERE feed_id = '$feed_id' AND is_cat = $sql_is_cat
6826                                 AND owner_uid = " . $owner_uid);
6827
6828                         return $key;
6829
6830                 } else {
6831                         return get_feed_access_key($link, $feed_id, $is_cat, $owner_uid);
6832                 }
6833         }
6834
6835         function get_feed_access_key($link, $feed_id, $is_cat, $owner_uid = false) {
6836
6837                 if (!$owner_uid) $owner_uid = $_SESSION["uid"];
6838
6839                 $sql_is_cat = bool_to_sql_bool($is_cat);
6840
6841                 $result = db_query($link, "SELECT access_key FROM ttrss_access_keys
6842                         WHERE feed_id = '$feed_id'      AND is_cat = $sql_is_cat
6843                         AND owner_uid = " . $owner_uid);
6844
6845                 if (db_num_rows($result) == 1) {
6846                         return db_fetch_result($result, 0, "access_key");
6847                 } else {
6848                         $key = db_escape_string(sha1(uniqid(rand(), true)));
6849
6850                         $result = db_query($link, "INSERT INTO ttrss_access_keys
6851                                 (access_key, feed_id, is_cat, owner_uid)
6852                                 VALUES ('$key', '$feed_id', $sql_is_cat, '$owner_uid')");
6853
6854                         return $key;
6855                 }
6856                 return false;
6857         }
6858
6859         /**
6860          * Extracts RSS/Atom feed URLs from the given HTML URL.
6861          *
6862          * @param string $url HTML page URL
6863          *
6864          * @return array Array of feeds. Key is the full URL, value the title
6865          */
6866         function get_feeds_from_html($url, $login = false, $pass = false)
6867         {
6868                 $url     = fix_url($url);
6869                 $baseUrl = substr($url, 0, strrpos($url, '/') + 1);
6870
6871                 libxml_use_internal_errors(true);
6872
6873                 $content = @fetch_file_contents($url, false, $login, $pass);
6874
6875                 $doc = new DOMDocument();
6876                 $doc->loadHTML($content);
6877                 $xpath = new DOMXPath($doc);
6878                 $entries = $xpath->query('/html/head/link[@rel="alternate"]');
6879                 $feedUrls = array();
6880                 foreach ($entries as $entry) {
6881                         if ($entry->hasAttribute('href')) {
6882                                 $title = $entry->getAttribute('title');
6883                                 if ($title == '') {
6884                                         $title = $entry->getAttribute('type');
6885                                 }
6886                                 $feedUrl = rewrite_relative_url(
6887                                         $baseUrl, $entry->getAttribute('href')
6888                                 );
6889                                 $feedUrls[$feedUrl] = $title;
6890                         }
6891                 }
6892                 return $feedUrls;
6893         }
6894
6895         /**
6896          * Checks if the content behind the given URL is a HTML file
6897          *
6898          * @param string $url URL to check
6899          *
6900          * @return boolean True if the URL contains HTML content
6901          */
6902         function url_is_html($url, $login = false, $pass = false) {
6903                 $content = substr(fetch_file_contents($url, false, $login, $pass), 0, 1000);
6904
6905                 if (stripos($content, '<html>') === false
6906                         && stripos($content, '<html ') === false
6907                 ) {
6908                         return false;
6909                 }
6910
6911                 return true;
6912         }
6913
6914         function print_label_select($link, $name, $value, $attributes = "") {
6915
6916                 $result = db_query($link, "SELECT caption FROM ttrss_labels2
6917                         WHERE owner_uid = '".$_SESSION["uid"]."' ORDER BY caption");
6918
6919                 print "<select default=\"$value\" name=\"" . htmlspecialchars($name) .
6920                         "\" $attributes onchange=\"labelSelectOnChange(this)\" >";
6921
6922                 while ($line = db_fetch_assoc($result)) {
6923
6924                         $issel = ($line["caption"] == $value) ? "selected=\"1\"" : "";
6925
6926                         print "<option value=\"".htmlspecialchars($line["caption"])."\"
6927                                 $issel>" . htmlspecialchars($line["caption"]) . "</option>";
6928
6929                 }
6930
6931 #               print "<option value=\"ADD_LABEL\">" .__("Add label...") . "</option>";
6932
6933                 print "</select>";
6934
6935
6936         }
6937
6938         function format_article_enclosures($link, $id, $always_display_enclosures,
6939                                         $article_content) {
6940
6941                 $result = get_article_enclosures($link, $id);
6942                 $rv = '';
6943
6944                 if (count($result) > 0) {
6945
6946                         $entries_html = array();
6947                         $entries = array();
6948
6949                         foreach ($result as $line) {
6950
6951                                 $url = $line["content_url"];
6952                                 $ctype = $line["content_type"];
6953
6954                                 if (!$ctype) $ctype = __("unknown type");
6955
6956 #                               $filename = substr($url, strrpos($url, "/")+1);
6957
6958                                 $entry = format_inline_player($link, $url, $ctype);
6959
6960 #                               $entry .= " <a target=\"_blank\" href=\"" . htmlspecialchars($url) . "\">" .
6961 #                                       $filename . " (" . $ctype . ")" . "</a>";
6962
6963                                 array_push($entries_html, $entry);
6964
6965                                 $entry = array();
6966
6967                                 $entry["type"] = $ctype;
6968                                 $entry["filename"] = $filename;
6969                                 $entry["url"] = $url;
6970
6971                                 array_push($entries, $entry);
6972                         }
6973
6974                         $rv .= "<div class=\"postEnclosures\">";
6975
6976                         if (!get_pref($link, "STRIP_IMAGES")) {
6977                                 if ($always_display_enclosures ||
6978                                                         !preg_match("/<img/i", $article_content)) {
6979
6980                                         foreach ($entries as $entry) {
6981
6982                                                 if (preg_match("/image/", $entry["type"]) ||
6983                                                                 preg_match("/\.(jpg|png|gif|bmp)/i", $entry["filename"])) {
6984
6985                                                                 $rv .= "<p><img
6986                                                                 alt=\"".htmlspecialchars($entry["filename"])."\"
6987                                                                 src=\"" .htmlspecialchars($entry["url"]) . "\"/></p>";
6988                                                 }
6989                                         }
6990                                 }
6991                         }
6992
6993                         if (count($entries) == 1) {
6994                                 $rv .= __("Attachment:") . " ";
6995                         } else {
6996                                 $rv .= __("Attachments:") . " ";
6997                         }
6998
6999                         $rv .= join(", ", $entries_html);
7000
7001                         $rv .= "</div>";
7002                 }
7003
7004                 return $rv;
7005         }
7006
7007         function getLastArticleId($link) {
7008                 $result = db_query($link, "SELECT MAX(ref_id) AS id FROM ttrss_user_entries
7009                         WHERE owner_uid = " . $_SESSION["uid"]);
7010
7011                 if (db_num_rows($result) == 1) {
7012                         return db_fetch_result($result, 0, "id");
7013                 } else {
7014                         return -1;
7015                 }
7016         }
7017
7018         function build_url($parts) {
7019                 return $parts['scheme'] . "://" . $parts['host'] . $parts['path'];
7020         }
7021
7022         /**
7023          * Converts a (possibly) relative URL to a absolute one.
7024          *
7025          * @param string $url     Base URL (i.e. from where the document is)
7026          * @param string $rel_url Possibly relative URL in the document
7027          *
7028          * @return string Absolute URL
7029          */
7030         function rewrite_relative_url($url, $rel_url) {
7031                 if (strpos($rel_url, "://") !== false) {
7032                         return $rel_url;
7033                 } else if (strpos($rel_url, "/") === 0)
7034                 {
7035                         $parts = parse_url($url);
7036                         $parts['path'] = $rel_url;
7037
7038                         return build_url($parts);
7039
7040                 } else {
7041                         $parts = parse_url($url);
7042                         if (!isset($parts['path'])) {
7043                                 $parts['path'] = '/';
7044                         }
7045                         $dir = $parts['path'];
7046                         if (substr($dir, -1) !== '/') {
7047                                 $dir = dirname($parts['path']);
7048                                 $dir !== '/' && $dir .= '/';
7049                         }
7050                         $parts['path'] = $dir . $rel_url;
7051
7052                         return build_url($parts);
7053                 }
7054         }
7055
7056         function sphinx_search($query, $offset = 0, $limit = 30) {
7057                 $sphinxClient = new SphinxClient();
7058
7059                 $sphinxClient->SetServer('localhost', 9312);
7060                 $sphinxClient->SetConnectTimeout(1);
7061
7062                 $sphinxClient->SetFieldWeights(array('title' => 70, 'content' => 30,
7063                         'feed_title' => 20));
7064
7065                 $sphinxClient->SetMatchMode(SPH_MATCH_EXTENDED2);
7066                 $sphinxClient->SetRankingMode(SPH_RANK_PROXIMITY_BM25);
7067                 $sphinxClient->SetLimits($offset, $limit, 1000);
7068                 $sphinxClient->SetArrayResult(false);
7069                 $sphinxClient->SetFilter('owner_uid', array($_SESSION['uid']));
7070
7071                 $result = $sphinxClient->Query($query, SPHINX_INDEX);
7072
7073                 $ids = array();
7074
7075                 if (is_array($result['matches'])) {
7076                         foreach (array_keys($result['matches']) as $int_id) {
7077                                 $ref_id = $result['matches'][$int_id]['attrs']['ref_id'];
7078                                 array_push($ids, $ref_id);
7079                         }
7080                 }
7081
7082                 return $ids;
7083         }
7084
7085         function cleanup_tags($link, $days = 14, $limit = 1000) {
7086
7087                 if (DB_TYPE == "pgsql") {
7088                         $interval_query = "date_updated < NOW() - INTERVAL '$days days'";
7089                 } else if (DB_TYPE == "mysql") {
7090                         $interval_query = "date_updated < DATE_SUB(NOW(), INTERVAL $days DAY)";
7091                 }
7092
7093                 $tags_deleted = 0;
7094
7095                 while ($limit > 0) {
7096                         $limit_part = 500;
7097
7098                         $query = "SELECT ttrss_tags.id AS id
7099                                 FROM ttrss_tags, ttrss_user_entries, ttrss_entries
7100                                 WHERE post_int_id = int_id AND $interval_query AND
7101                                 ref_id = ttrss_entries.id AND tag_cache != '' LIMIT $limit_part";
7102
7103                         $result = db_query($link, $query);
7104
7105                         $ids = array();
7106
7107                         while ($line = db_fetch_assoc($result)) {
7108                                 array_push($ids, $line['id']);
7109                         }
7110
7111                         if (count($ids) > 0) {
7112                                 $ids = join(",", $ids);
7113                                 print ".";
7114
7115                                 $tmp_result = db_query($link, "DELETE FROM ttrss_tags WHERE id IN ($ids)");
7116                                 $tags_deleted += db_affected_rows($link, $tmp_result);
7117                         } else {
7118                                 break;
7119                         }
7120
7121                         $limit -= $limit_part;
7122                 }
7123
7124                 print "\n";
7125
7126                 return $tags_deleted;
7127         }
7128
7129         function feedlist_init_cat($link, $cat_id, $hidden = false) {
7130                 $obj = array();
7131                 $cat_id = (int) $cat_id;
7132
7133                 if ($cat_id > 0) {
7134                         $cat_unread = ccache_find($link, $cat_id, $_SESSION["uid"], true);
7135                 } else if ($cat_id == 0 || $cat_id == -2) {
7136                         $cat_unread = getCategoryUnread($link, $cat_id);
7137                 }
7138
7139                 $obj['id'] = 'CAT:' . $cat_id;
7140                 $obj['items'] = array();
7141                 $obj['name'] = getCategoryTitle($link, $cat_id);
7142                 $obj['type'] = 'feed';
7143                 $obj['unread'] = (int) $cat_unread;
7144                 $obj['hidden'] = $hidden;
7145                 $obj['bare_id'] = $cat_id;
7146
7147                 return $obj;
7148         }
7149
7150         function feedlist_init_feed($link, $feed_id, $title = false, $unread = false, $error = '', $updated = '') {
7151                 $obj = array();
7152                 $feed_id = (int) $feed_id;
7153
7154                 if (!$title)
7155                         $title = getFeedTitle($link, $feed_id, false);
7156
7157                 if ($unread === false)
7158                         $unread = getFeedUnread($link, $feed_id, false);
7159
7160                 $obj['id'] = 'FEED:' . $feed_id;
7161                 $obj['name'] = $title;
7162                 $obj['unread'] = (int) $unread;
7163                 $obj['type'] = 'feed';
7164                 $obj['error'] = $error;
7165                 $obj['updated'] = $updated;
7166                 $obj['icon'] = getFeedIcon($feed_id);
7167                 $obj['bare_id'] = $feed_id;
7168
7169                 return $obj;
7170         }
7171
7172
7173         function fetch_twitter_rss($link, $url, $owner_uid) {
7174                 $result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
7175                         WHERE id = $owner_uid");
7176
7177                 $access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
7178                 $url_escaped = db_escape_string($url);
7179
7180                 if ($access_token) {
7181
7182                         $tmhOAuth = new tmhOAuth(array(
7183                                 'consumer_key'    => CONSUMER_KEY,
7184                                 'consumer_secret' => CONSUMER_SECRET,
7185                                 'user_token' => $access_token['oauth_token'],
7186                                 'user_secret' => $access_token['oauth_token_secret'],
7187                         ));
7188
7189                         $code = $tmhOAuth->request('GET', $url);
7190
7191                         if ($code == 200) {
7192
7193                                 $content = $tmhOAuth->response['response'];
7194
7195                                 define('MAGPIE_CACHE_ON', false);
7196
7197                                 $rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
7198                                         MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
7199
7200                                 return $rss;
7201
7202                         } else {
7203
7204                                 db_query($link, "UPDATE ttrss_feeds
7205                                         SET last_error = 'OAuth authorization failed ($code).'
7206                                         WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7207                         }
7208
7209                 } else {
7210
7211                         db_query($link, "UPDATE ttrss_feeds
7212                                 SET last_error = 'OAuth information not found.'
7213                                 WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
7214
7215                         return false;
7216                 }
7217         }
7218
7219         function print_user_stylesheet($link) {
7220                 $value = get_pref($link, 'USER_STYLESHEET');
7221
7222                 if ($value) {
7223                         print "<style type=\"text/css\">";
7224                         print str_replace("<br/>", "\n", $value);
7225                         print "</style>";
7226                 }
7227
7228         }
7229
7230         function rewrite_urls($line) {
7231                 global $url_regex;
7232
7233                 $urls = null;
7234
7235                 $result = preg_replace("/((?<!=.)((http|https|ftp)+):\/\/[^ ,!]+)/i",
7236                         "<a target=\"_blank\" href=\"\\1\">\\1</a>", $line);
7237
7238                 return $result;
7239         }
7240
7241 ?>